Tenth Doctor

"I'm the Doctor, I'm a timelord, I'm from the Planet Galifrey the constalation of Kasturbourus! I am over 903 years old and I'm the man who's gonna save your lives and the lives of all 6 billion people on the planet bellow." -The Tenth Doctor, Voyage of the Damned The Tenth Doctor is the 11th and 12th incarnation of the Doctor. He was born when his ninth incarnation sucked the Time vortex out of Rose Tyler. He died, twice. Once when he was shot by a lone Dalek, and finally died when he sucked all the radiation out of a room, to save Donna Noble's grandfather, Wilfred Mott.

The Tenth Doctor was considered, "the most human and romantic Doctor". Many of his relationships with companions were shaped, to one degree or another, by romance; he seemed to genuinely love his first companion, Rose Tyler, as the person who helped heal some of the scars of the Time War, was completely oblivious to Martha Jones' obvious affections toward him, and insisted upon a platonic relationship with Donna Noble.

The departure of each of these companions marked periods in his life where he would abstain from having companions at all, and on one occasion he even stopped having adventures or leaving the TARDIS, with little more than a cat for company. This Doctor was unique in that he was the only incarnation of the Doctor who chose to abort one of his regenerations, channeling the energy into his spare hand without changing his [physical] appearance, something his successor would attribute to suffering "vanity issues at the time".

Personality
The Tenth Doctor was a hyper, energetic, vain incarnation of the Doctor. He could be quite Alien, and distant at times, such as when he changed a fixed point in time to save the crew on Mars, or when he ranted about his vanity to Wilfred Mott.

But he was the most Human, falling in love with Rose, and getting married to Queen Elizabeth. He usually didn't care to date though. As he igonred the fact Martha obviously liked him, as well as Jack (although Jack wasn't serious about his "crush" on the Doctor. And when Martha told him how she felt, he made it clear to his future companions (Donna) that he just wanted a friend, and no romance.

He did flirt on accosion though, like when he and Rose went to the 1950s or when they went "undercover" as cops in the 2010s. But most of his flirts were to Rose, and only to Rose, as he seemed to have an affection for her. The Doctor's humane side made him a more loving and fun character to be around, being very much a good friend to all his companions and welcomed anyone with open arms. He became almost like a family man, especially with the Tyler family. The Doctor still had PTSD from the Time War, but less so to the Ninth Doctor, most likely due to the Tyler's (Rose, Mickey and Jackie), Martha and the Nobles (Donna and Wilf). This Doctor surronded himself with more Humans than nearly any of his other regenerated selves.

This Doctor didn't like to be alone, and enjoyed showing off to his companions (although, with Donna, she was there to balance him out when he got arrogant or cocky). When he was alone, he got colder, more alien, which is why he needed somebody to stop him, something Donna Noble pointed out herself. However, when Martha left, he became more happy, due to her making him understand what he did wrong, and how not to do it again. The Doctor had a merciful and compassionate nature, consistently extending an offer to help even his most dangerous enemies before putting a stop to their evil deeds. However, when his patience reached its limit or his enemies were duplicitous, they received no mercy or second chances. He also held a forgiving philosophy, even forgiving the Master for his crimes against humanity.

Appearance
The Tenth Doctor was a handsome incarnation of the Timelord, with long hair, really bad skin (as according to him), side burns, and brown eyes. He wore a brown, pin stripe suit, and a long trench coat, with pockets bigger on the inside. His pants, were brown and pin-stripe to, and also has bigger on the inside pockets. He kept lots of gadgets and gizmos in his pockets, including the Sonic Screwdriver, a Machine that goes ding and his Psychic Paper. He also wore a blue suit, with a red tie, that he sometimes didn't wear. On his feet were a pair of sandshoes that his later incarnation made fun of him for.

Post Regeneration
After the Ninth Doctor absorbed the Time Vortex from Rose Tyler, the forces of the time vortex began to destroy every cell in his body, and he had to regenerate to save his life. After regenerating, the new Doctor noted his new teeth, and intended to take Rose to the planet Barcelona. With Rose suffering an emotional crisis over his sudden change, he instead decided to take her home to the Powell Estate in London. En route, he convinced her of his identity by reminding her of the first word the Ninth Doctor had said to her, before he began to suffer adverse effects from his regeneration. Experiencing manic hyperactivity, he accelerated the TARDIS' speed.

Crash-landing the TARDIS at the Powell Estate on Christmas Eve 2006, the Doctor fell into a coma after wishing Jackie Tyler and Mickey Smith a "Merry Christmas".

He was snapped out of it briefly later that night to save Mickey and the Tylers from a Roboform Christmas tree, but the stress of waking up "too soon" made matters worse and he collapsed again, only being able to warn Rose that the Roboform were "pilot fish" heralding a greater threat. The Doctor slept through much of the ongoing invasion by the Sycorax. When the TARDIS was taken aboard a Sycorax spaceship on Christmas morning, he awoke with the help of some tea that seeped into a component of the TARDIS, longside regeneration energy which he seeped from his third incarnation, who had arrived in Jackie's apartment moments before.

Stopping the Sycorax leader's blood control of humanity, the Doctor challenged him to a duel over the fate of Earth. In the ensuing sword fight, the Sycorax leader chopped off the Doctor's hand. However, because he was still within the first fifteen hours of his regeneration cycle, he grew a new hand and went on to win the duel for the Earth. When the Sycorax leader went back on the deal, the Doctor ejected him from the ship, killing him, proclaiming that he was a "no second chances" sort of man. As the Sycorax fled, Prime Minister Harriet Jones ordered their ship destroyed, killing the Sycorax. Enraged that Harriet would execute a retreating enemy, the Doctor whispered, "Don't you think she looks tired", to her aide, bringing about Harriet's premature downfall. After choosing his new outfit, the Doctor had Christmas dinner with Mickey and the Tylers, and then went to join the celebration in Trafalgar Square. Whilst Rose was at home, the Doctor unsuccessfully tried to save Elton Pope's mother from an Elemental Shade from the Howling Halls.

Adventures With Rose
Whilst Rose was at home, the Doctor unsuccessfully tried to save Elton Pope's mother from an Elemental Shade from the Howling Halls. Taking off from the Powell Estate with Rose, the Doctor was summoned to the New New York Hospital on New Earth by the Face of Boe. Inside the hospital, the Doctor discovered the Sisters of Plenitude were creating human clones and infecting them with every disease to develop cures for the other patients. Discovering that Cassandra O'Brien had possessed Rose, the Doctor cured all of the clones with the hospital lift's disinfectant, along with the treatments developed by the Sisters, with a reluctant Cassandra's help as she had set them free to rampage.

This created a new lifeform in the process, and the sisters were arrested by the NNYPD while the Doctor talked with the Face of Boe, who revealed that he would share his secret with the Doctor on their next meeting. While the Doctor tried to make Cassandra leave Rose's body and accept death, she found a volunteer in her servant, Chip, for her to enter, but, as he only had a "half-life", Chip's body began failing. With Cassandra convinced it was her time, the Doctor took her back in time to die in the arms of her younger self. The Doctor and Rose took an accidental trip to 1879 Scotland, where they and Sir Robert MacLeish protected Queen Victoria from an assassination attempt by the Brethren at Torchwood House that involved a Lupine Wavelength Haemovariform. The Doctor deduced the House was a trap for the wolf designed by Sir Robert’s father and Prince Albert and used the telescope and the Koh-i-Noor diamond to hit the wolf with focused moonlight. At the host’s request he increased the power to kill him. As a reward, the Doctor was knighted by the Queen, but he and Rose were also banished from the British Empire because their blasé attitude to danger unnerved the Queen.

Then following a tip off from Mickey, the Doctor and Rose went undercover at Deffry Vale High School, where the Doctor was reunited with his old friend Sarah Jane Smith, who was also investigating the school. He encountered her again that night, as like him she’d returned to the school at night to investigate, and revealed his identity. After repairing K9 Mark III and making amends with her, he learned that Krillitane oil was being added to the school dinners to boost the children's intelligence.

Rose confronted him about Sarah Jane forcing him to confess that she could spend the rest of her life with him, but he couldn’t with her. He defied this as “the curse of the Time Lords”, unknowingly revealing himself to the Krillitanes’ leader, Brother Lassar, who was spying on them.

The next day he confronted Lassar at the school and warned him, however the Krillitane was confident he’d join forces with them one he worked out what they were trying to achieve. Together with Sarah and Rose He found the Krillitanes were using the children's minds to solve the Skasis Paradigm.

Lassar interrupted and tempted him with an alliance, claiming he could use the Paradigm to restore fallen civilisations, including his own people. Sarah talked him out of it and Lassar ordered his brothers to pursue them. K9 sacrificed himself to blow up the Krillitanes with their oil, destroying the school, which Mieky had emptied, in the process.

Adventures with Rose and Mickey
The Doctor asked Sarah Jane to rejoin him on his travels, but she declined, instead suggesting that the Doctor allow Mickey to accompany him and Rose on their travels, as he was finally ready to see the universe. Before they departed, the Doctor also built a new K9 as parting gift for Sarah Jane, giving it all the memories of the previous model.

With Mickey now aboard, The TARDIS landed on the a spaceship in the 51st century, where the Doctor and his companions found that the crewmembers' organs were used as "parts" by the repair droids after the ship had been damaged. The droids created time windows to find Reinette, the Madame de Pompadour, and complete repairs.

While investigating, the Doctor travelled throughout Reinette's life through use of the time windows, fighting the droids throughout 18th century France and developing a romantic relationship with Reinette. After Rose and Mickey wandered off, the Doctor found a horse that had wandered through the window onto the ship, naming him Arthur. While talking to Arthur, the Doctor discovered a portal through which briefly came the hand of a humanoid. When the droids came to harvest Madame de Pompadour, the Doctor, on horseback, broke through a time window to the court of Versailles in 1758, shattering the connection to the ship and stranding himself and the droids from the ship, causing the droids to deactivate from a lack of purpose. Initially resigning himself to living with Reinette, the Doctor found a link back to the ship and his TARDIS through her old fireplace. The Doctor tried going back through the fireplace so that he could take Reinette to see the universe, but the loose connection to the time window meant she had already died when he returned. After reading a heartfelt letter she had left him, the Doctor was left devastated.

Whilst travelling through time, the Doctor, Rose and Mickey fell through a crack in time, ending up on a parallel Earth more technologically advanced than their Earth. While the TARDIS had died upon landing in the alternate universe, the Doctor managed to power a surviving piece of the TARDIS, but it required a twenty-four hour recharging cycle before the TARDIS could restore itself, giving the Doctor, Rose and Mickey time to explore the alternate Earth.

When Rose found her father was alive on the parallel world, the Doctor cautioned her against making contact. While Mickey searched for the parallel version of his grandmother, the Doctor gave in to Rose's request to attend the birthday party of her parallel mother. At the party, the Doctor was discovered a parallel version of the Cybermen had been created, and could only stand witness as they crashed the party, and killed the guests inside. Escaping, the Doctor allied himself with the Preachers, and organised a break in into Cybus Industries Factory, where mass conversions were beginning. He paired up with Miss Moore to use the tunnels and discovered the emotional inhibitor was key to the Cybermen. She was killed and he was taken to the creator of the Cybermen, John Lumic, for analysis due to his alien anatomy.

He discovered Lumic had already been converted into the Cyber-Controller. The Doctor bought time by trading philosophical ideas with Lumic while subtly telling Mickey and Jake Simmonds to hack the Lumic family database to find the cancellation code to the Cybermen's emotional inhibitors. Mickey texted Rose the code, and the Doctor connected the phone with the\ code to deactivate the Cybermen's inhibitors, causing them to explode, along with Cybus Industries.

When it came time to leave, Mickey chose to stay behind to fight Cybermen worldwide, both because he had witnessed his counterpart's death, and because he didn't fit in with the Doctor and Rose's close relationship. The Doctor and Rose honoured Mickey's wishes and returned to their universe, where they visited Jackie at the Powell Estate.

The Doctor took Rose to Muswell Hill on the eve of Queen Elizabeth II's coronation in 1953, where people had been mysteriously taken from their homes. Taking the "domestic approach", the Doctor found Grandma Connolly's face had been completely removed, and that the same had happened to the others who had been kidnapped. When Grandma Connolly was taken away by police, he pursued and met Detective Inspector Bishop, who accepted his help. After Rose was found with her face taken, the Doctor was infuriated.

They discovered that Mr Magpie‘s television sets were the commin denominator in the cases and went to confront him. They learnt the Wire was using the coronation to feed on the electrical activity of the brain, "taking people's faces [and] their essences". After nearly being consumed himself, the Doctor pursued the Wire and Magpie up Alexandra Palace and climbed after them to prevent the Wire from becoming manifest again by converting the "big transmitter" into a receiver of all of the faces of the people watching the coronation. With Tommy Connolly's help, he turned the receiver back into a transmitter and trapped the Wire's electrical signal onto a video cassette, freeing everyone, including Rose and Grandma Connolly.

The Beast
The Doctor and Rose landed inside Sanctuary Base 6 on Krop Tor, a planet that was in perpetual orbit around the black hole K37 Gem 5, and lost the TARDIS following an earthquake. The crew of Sanctuary Base 6, having come to Krop Tor to discover the source of power emanating from the planet's core which allowed the planet to orbit the black hole, refused to divert their drill to collect the TARDIS. This forced the Doctor and Rose to contemplate a future settling down. The Beast began terrorising the explorers and possessing their servants, the Ood. The Doctor and the science officer of Sanctuary Base 6, Ida Scott, descended into the core of the planet and discovered a pit which had started opening.

When nothing emerged from the pit, the Doctor speculated the prison was open but not the cell and decided they should withdraw. However the transport tube back to the surface was rendered unusable by the Ood cutting the cable, so the Doctor decided to use the cable to descend into the pit. Inside, he came face-to-face with the Beast and tried conversing, though its consciousness had already escaped to the expedition's archaeologist, Toby Zed. Realising the Beast's jailers thought of the Beast's escape, the Doctor shattered the jar keeping the planet orbiting the black hole, believing Rose would find a way to survive. At the same time, Toby was ejected from the Sanctuary Base 6 rocket by Rose. Though willing to "go along for the ride", the Doctor discovered his TARDIS by accident; he saved Ida, but didn't have enough time to rescue any of the Ood. Towing the rocket safely away from the black hole, the Doctor "swapped passengers" and resumed his travels with Rose.

The Last Days of Rose
The Doctor and Rose pursued a Hoix, during which the Doctor briefly encountered an adult Elton Pope, but Elton ran away as the Doctor and Rose left in the TARDIS. But when Elton Pope used Jackie in his efforts to make contact with him, the Doctor tracked him down on Rose's behalf so Rose could berate him for upsetting her mother. He unwittingly saved Elton from being absorbed by Victor Kennedy after arriving. Kennedy tried threatening Elton's life so he could take over the TARDIS, but the Doctor refused. He told Kennedy that the members of LINDA, who had already been absorbed, would have had something to say about absorbing Elton. They pulled at Kennedy's stomach, causing him to drop his cane. Elton broke the cane's limitation field that was preventing the ground from absorbing him. Though he couldn't save the others' lives, the Doctor brought the consciousness of Ursula Blake back, but stuck as a face on piece of concrete. He then told Elton the truth about his mother's death. The Doctor and Rose went to 2012 to see the Olympics, where they met Chloe Webber, a girl who had been possessed by a lone Isolus, who was trapping other children from her street in drawings to give the Isolus company. Despite attempting to help the Isolus, the Doctor was trapped in a drawing, along with the TARDIS. Inside the drawing, the Doctor fought scribble creatures, saved Ginger and Stuart and was able to draw a depiction of the Olympic torch and pointed at it to aid Rose. Once Rose tossed the Isolus' pod into the Olympic flame to recharge it, the Doctor and the children were freed from the drawing. As the torch bearer had been injured by the pod, the Doctor took his place, lighting the Olympic flame himself. Reuniting with Rose, the Doctor warned her that he felt a "storm" coming when she said that no-one would ever separate them. The Doctor and Rose also visited a rocky, barren planet and watched giant creatures fly past, where Rose expressed that she would stay with the Doctor forever.

Returning to the Powell Estate, the Doctor and Rose found humanity was being visited by beings believed to be ghosts of their loved ones. The Doctor tracked the signal to Torchwood Tower in Canary Wharf and, along with accidental stowaway Jackie, was taken prisoner by the leader of the Torchwood Institute, Yvonne Hartman, while Rose remained in the TARDIS as it was taken away.

The Doctor strongly opposed their use of "ghost shifts" for a power source, as it was ripping a hole between parallel worlds which increased in size with every iteration, and convinced Yvonne to pause the experiments. The original tear was caused by a Void Ship. Two computer technicians, secretly under the control of Cybermen, restarted the ghost shift. The ghosts, who were actually Cybermen, came from the parallel world where the Doctor and Rose had left Mickey. As the Cybermen invaded Earth, the void ship opened, revealing a group of Daleks called the Cult of Skaro with a Genesis Ark, a Time Lord prison ship containing millions of Daleks.

As the Daleks and Cybermen waged war with each other, the Doctor was transported back to the Cybermen's original universe, where he reunited with Pete Tyler at the other universe's Torchwood, where the People's Republic took over when the Preachers knew what it was doing. With the Preachers, the Doctor returned to his universe. With the help of a short alliance between the Cybermen and the Preachers, the Doctor rescued Rose and Mickey, who had found his way back to N-Space, from their imprisonment by the Cult of Skaro. In the confusion, Mickey accidentally touched the Genesis Ark, opening it and releasing millions of imprisoned Daleks. The group then saved Jackie from being upgraded by the Cybermen. To defeat his warring enemies, the Doctor needed to open the Void; doing so would suck anything covered in "Void stuff" into it and seal off the two universes for good. Realising that Rose was also covered in Void energy, the Doctor sent her, along with Mickey, Pete, Jackie and the other Preachers, back to "Pete's World", where they would be safe, but Rose refused to leave the Doctor and returned, knowing she would never see her family again.

Together, the Doctor and Rose opened the Void and the Daleks and Cybermen were sucked in. The plan initially went smoothly, until Rose's lever malfunctioned, threatening to halt the operation. Rose secured the lever, but couldn't keep her grip and began to fall into the Void. She was saved at the last second by Pete and taken back across to the other universe, separating her from the Doctor.

Still devastated, the Doctor met Rose one last time at Bad Wolf Bay in the Norway of Pete's World. He was able to project a hologram of himself through the last crack between the universes by parking the TARDIS in orbit around a supernova to gain enough power to say goodbye. Rose finally told the Doctor that she loved him, but before he could confess his response, the connection was lost. The Doctor was left alone and teary-eyed, until a woman in a wedding dress suddenly appeared inside the TARDIS.

Post-Rose
The woman, Donna Noble, had been at her wedding to Lance Bennett, unexpectedly finding herself spirited away to the TARDIS without explanation. She loudly protested at where she had ended up, putting the Doctor in a state of bafflement. While trying to return Donna to the ceremony on Christmas Eve 2007, the Doctor chased a taxi across the motorway in the TARDIS as Donna was kidnapped by the Roboform.

Successful in saving her, he returned her to her wedding reception, where the Roboform attacked with bombs disguised as Christmas baubles. The Doctor destroyed the attack force and went with Donna and Lance to H.C. Clements, which had a basement leading to a secret Torchwood base underneath the Thames. There, the Doctor and Donna discovered that Lance was working for the Empress of the Racnoss, and planned on using Donna as an incubator for Huon particles needed to revive the other Racnoss in stasis at the Earth's core; Donna had appeared in the TARDIS because of a magnet-like pull between the Huon particles within her and those within the TARDIS. Using that magnetic pull to bring the TARDIS to him, the Doctor and Donna travelled back in time to witness the Racnoss' presence at the Earth's creation. Forced back to 2007 by Lance being force-fed Huon particles in Donna's place, which also resulted in him being fed to the Racnoss offspring through a hole dug by Torchwood, waking them. After the Empress failed to take his offer to leave Earth, the Doctor drowned the Racnoss offspring by flooding the Torchwood base on top of the hole with the River Thames.

He ignored the Empress' screams for mercy, only leaving at Donna's request. When the Empress tried attacking London with her Webstar in retaliation, the British military destroyed her along with it. Taking Donna home, the Doctor asked her to join him in the TARDIS, but she declined because his execution of the Racnoss had scared her. While investigating a set of plasma coils in 2008 London, the Doctor checked himself into Royal Hope Hospital, where he met medical student Martha Jones. The hospital was H₂O scooped onto the Moon by the Judoon, who were hunting the Plasmavore murderer Florence Finnegan. Pretending to be human, the Doctor tricked Finnegan into drinking some of his blood, which she assimilated into her system, and the Judoon executed her after identifying her as a non-human. Martha revived the Doctor, and the hospital was returned to Earth. After leaving the hospital, the Doctor tracked down Martha at a family gathering to offer her one trip in time as a way of expressing gratitude for her assistance.

Extended Trip
The Doctor took Martha to 1599 London to meet William Shakespeare. Learning the lost play, Love's Labour's Won, was to be performed, the Doctor decided to investigate why it vanished. He discovered the Carrionites had the Globe Theatre constructed to their design in order to use a hidden incantation in the script to free the rest of their kind from the Deep Darkness.

Despite succeeding, their incantation was reversed by one improvised by Shakespeare, trapping them and all copies of the play in the Darkness. As it risked freeing them, the Doctor advised Shakespeare not to rewrite the play. While bidding Shakespeare goodbye, Queen Elizabeth I arrived and ordered her men to kill the Doctor, declaring him her sworn enemy, much to Martha's confusion and the Doctor's amusement. Fleeing the Queen's men, the Doctor decided to stretch the one trip agreement with Martha to include a trip to the future. Returning to New Earth in 5,000,000,053, Martha was kidnapped by a couple wishing to use the New New York Motorway's fast lane. Searching for her, the Doctor discovered the city had been plagued and the population had become trapped on the motorway for their own safety.

Novice Hame took the Doctor to what was left of the Senate to help the Face of Boe open the Motorway. Martha and the population were freed from being attacked by the Macra, who lived in the filthy air below the cars. After the Face of Boe sacrificed his own life to power the doors keeping the motorway shut, he uttered his secret to the Doctor: "You are not alone". As the city sang in celebration of their freedom, the Doctor told Martha of the Last Great Time War.

In 1930 New York City, the Doctor and Martha investigated kidnappings from Hooverville, a community of people hit by the Great Depression with nowhere left to go, befriending their leader, Solomon. They also met Tallulah, in search of her boyfriend Laszlo, who had disappeared a few days prior. Investigating the sewers, the Doctor discovered Pig slaves that worked for the Cult of Skaro, who were kidnapping humans with high intelligence for their Final Experiment; the pig slaves were created from those of low intellect.

The group ran into Laszlo, and saw how the Daleks had partially transformed him into a pig slave, but he managed to escape with his mind still his own. The Doctor discovered that the Daleks were trying to evolve into new forms in order to survive, and the Cult of Skaro's leader, Dalek Sec, transformed himself into the first human-Dalek hybrid as part of this plan. To the Doctor's surprise, Sec grew compassionate due to his new humanity, wishing to no longer conquer Earth, instead wanting the Doctor to take the new human-Dalek race to a new world in his TARDIS.

However, Dalek Caan and the other members of the Cult betrayed Sec, stripped him of his authority, exterminated Solomon and continued with their mission to conquer Earth, filling the captive humans with pure Dalek DNA. The Doctor climbed to the top of the Empire State Building and got in the way of the solar flare that powered the experiment, adding Time Lord DNA to the hybrids. After Sec was killed by Dalek Thay in the defence of the Doctor, the Daleks fought the hybrids. Jast and Thay were killed in the battle and Caan deactivated the hybrids as failures, leaving himself the sole surviving Dalek.

The Doctor attempted to negotiate with Caan, but the Dalek performed an emergency temporal shift and fled. Laszlo began to die due to the pig slaves' limited lifespan, but the Doctor, using the laboratory built by the Cult, cured his deterioration. However, he couldn't fix Laszlo's disfigurement, so he left him and Tallulah to live their lives in peace as new residents of Hooverville, where no one would judge Laszlo's appearance.

The Doctor brought Martha back home, exactly twelve hours after they left, planning to leave and continue his travels alone. However, he decided to stay after hearing that Professor Richard Lazarus was going to "change what it meant to be human". Attending Lazarus' demonstration, the Doctor met Martha's family, with her mother, Francine, taking an immediate dislike to him. The Doctor discovered Lazarus had created a machine to restore youth, similar to the regeneration process. However, the machine backfired, mutating Lazarus into a monster that fed off the life force of others. Following Lazarus into Southwark Cathedral, the Doctor saved Martha and her sister, Tish, from being drained by Lazarus by using his sonic screwdriver to enhance a pipe-organ to reverse the machine's effect and revert Lazarus to his original self, but not before Lazarus had fallen to his death.

Official Travels with Jones
Per Martha's request, the Doctor took her on as his official travelling companion. After upgrading Martha's phone in mid-travel, the Doctor locked onto the distress call sent out by the SS Pentallian, that was plummeting into the Torajii sun. The Doctor offered to help evacuate the ship, but was unable to when the TARDIS was trapped in the ship's boiler room. A malevolent force that had possessed the husband of the ship's captain, Kathryn McDonnell, began reducing the rest of the crew to cinders. Eventually, the Doctor discovered that Torajii was sentient and seeking revenge on McDonnell for scooping out some of it to use as fuel, and possessed him. Holding off possession long enough, the Doctor told Martha how to get rid of the fuel to appease Torajii. She did so with the last surviving crewmembers and the Doctor was released from its possession. The Doctor and Martha found themselves being pursued by the Family of Blood, who wanted a Time Lord body to achieve a form of immortality as they had a limited lifespan. Rather than confront them directly, the Doctor, out of mercy, chose to hide from them instead. He used a Chameleon Arch to transform himself into a human school teacher named John Smith in 1913 England, completely repressing his Time Lord biology, and sending Martha undercover as his maid to protect the Arch, as his alter ego would have no recollection of the Doctor, only dreams of his adventures.

However, John Smith fell in love with the matron of the school, Joan Redfern, and initially refused to change back as he had adapted to a normal life and had foreseen a bright future with Joan, but decided to allow the Doctor to retake his Time Lord body so he could stop the Family from killing anyone else.

Haunted by all the death and destruction his act of mercy had caused, the Doctor gave the Family their immortality, with ironic punishments: he trapped Father of Mine in chains forged in a dwarf star, imprisoned Mother of Mine in the event horizon of a collapsing galaxy, suspended Son of Mine in time as a scarecrow and trapped Daughter of Mine in every mirror in existence. He asked Joan to travel with him, telling her that he was capable of all the things John Smith had been, but she refused, knowing that John and the Doctor were no longer the same person. While on an adventure in 2008 to stop "four things and a lizard" during a "migration", the Doctor met Sally Sparrow, who gave him a folder of information, telling him that it would be vital to him in the future when he would get stuck in 1969. The Doctor and Martha were transported back in time to 1969 by the Weeping Angels while investigating strange disappearances at Wester Drumlins in 2007. Using the information given to him by Sally, the Doctor left messages for her to find in the future and bring the TARDIS to 1969 to collect him and Martha. Given that he did not use his name in these messages, those other than Sally who learned of the messages, like Justin Richards, took to calling him "the Easter Egg man". The Doctor created a device, the Timey-wimey detector, to track people displaced in time by the Angels. On another refuelling trip to Cardiff, the Doctor caught a glimpse of Jack Harkness running towards the TARDIS. Due to his Time Lord nature having an inbuilt rejection towards Jack's "impossible existence", the Doctor set off immediately after the TARDIS was refuelled, but Jack managed to jump onto to the exterior of the TARDIS. The TARDIS, reacting badly, made an uncontrollable leap into the Time Vortex, with Jack clinging on to it, until it made it all the way to Malcassairo at the end of the universe. After Jack revived from the fatal trip, the Doctor had a tense reunion with him. Whilst investigating the planet, the Doctor, Martha and Jack saved a human from being hunted by cannibalistic humanoids called the Futurekind. Fleeing the Futurekind, they entered the Silo 16, the asylum of the last survivors of the universe and the launching point for the most ambitious trip in history: Utopia, supposedly a haven beyond the collapse of reality. The Doctor, Jack and Martha assisted Professor Yana and his assistant, Chantho, in powering up the rocket. However, the Doctor learnt Yana was actually the Master, having made himself human to escape the Last Great Time War using a Chameleon Arch, and also learned that his name was an anagram of the Face of Boe's secret (You Are Not Alone).

Restoring his Time Lord consciousness out of curiosity from Martha's questions about his watch, Yana became the Master again, and killed Chantho, but not before she was able to shoot him. Facing imminent regeneration, the Master locked himself inside the Doctor's TARDIS and, once he regenerated into a new body, hijacked the ship and escaped, leaving the Doctor, Jack and Martha to be killed by the Futurekind at the end of the universe.

A Year of Hell
The Doctor was able to fix Jack's vortex manipulator, and used it to escape the Futurekind and travel back to 2008. Once there, the trio discovered the Master, using the alias "Harold Saxon", had been elected Great Britain's Prime Minister. He framed them for terrorism and planted explosives in Martha's flat, forcing the Doctor, Martha and Jack to go on the run. He also made sure they remained powerless by sending Jack's team at Torchwood Three to the Himalayas and captured Martha's family, after he had tricked Martha's mother into helping him entrap the Doctor. On board the Master's airship, the Valiant, the Doctor discovered his TARDIS had been turned into a paradox machine. After failing to use a perception filter to foil the Master's plot, the Master summoned the Toclafane, whom he ordered to assassinate US President Arthur Winters, attack the Earth, and decimate the population. He then killed Jack and aged the Doctor into a frail old man with his laser screwdriver as he tried to reason with him. As the Toclafane began slaughtering the population, the Doctor sent Martha away with Jack's vortex manipulator after whispering his plan to stop the Master into her ear.

Being kept prisoner aboard the Valiant for a year, the Doctor, Jack and the Jones family witnessed the Master and the Toclafane devastate Earth's civilisations and reduce the human race to camps of survivors, and suffered at his hands themselves, while the Doctor realised that the Toclafane were the humans he had encountered at the end of the universe, and began to telepathically hack into the Archangel Network. After Martha returned to the UK, the Doctor was further aged into a diminutive body by the Master as a warning to Martha. When Martha allowed herself to be taken to the Master for execution, she and the Doctor revealed their plan; using the Archangel Network, the Doctor harnessed the psychic energy of humanity's hope, as Martha had spent a year travelling the world telling humanity about his importance to them, regaining his youthful appearance in the process.

He then forgave the Master for everything he had done, inflicting a blow to the Master's ego. On the Doctor's orders, Jack destroyed the paradox machine keeping the Toclafane in the present, undoing the entire year; Earth was restored as time resumed for everyone else right after the President was killed, but those on the Valiant retained their memories of the year due to being at the "eye of the storm". Urging the Jones' against descending to his level for revenge, the Doctor planned to imprison the Master in the TARDIS, but Lucy Saxon, the Master's human wife, shot him, and the Master refused to regenerate in an act of defiance against the Doctor, and died in his arms. After burning his body, the Doctor offered Jack the chance to rejoin him on the TARDIS, but Jack declined, saying that he was still needed at Torchwood Three.

Repairing the TARDIS, but forgetting to put his shields back up, the Doctor prepared to depart with Martha, but found she also wished to leave him to help her family recover from the year-long ordeal they had suffered, and also told him she was in love with him, but knew he'd never return her feelings. However, she gave him her upgraded mobile phone so that she could call him if trouble arose.

The Shields Down
Immediately after Martha left, the Doctor crashed his TARDIS into that of his fifth incarnation's, which put the universe in danger of being sucked into a Belgium-sized black hole. However, the Tenth Doctor used his memory of the event from his fifth incarnation's viewpoint to create a supernova at exactly the same moment the black hole appeared. After giving a heart-felt speech of appreciation to the Fifth Doctor, the Doctors' TARDISes separated and the two parted ways. Before he could turn the TARDIS' shields back on, the spaceship Titanic crashed through the walls. After fixing the damage to his TARDIS, the Doctor attended a party on the Titanic on Christmas Eve, 2008, where he befriended Morvin and Foon Van Hoff and a waitress named Astrid Peth.

During a brief trip to Earth with Astrid, the Van Hoffs, Mr. Copper, and a Zocci named Bannakaffalatta, the Doctor also met Wilfred Mott, who informed him that London had evacuated in fear of another alien attack on Christmas day. When the ship's owner, Max Capricorn, had a meteor shower purposely crash into the Titanic so that it would crash on Earth and wipe out six billion humans to bankrupt his treacherous company, the Doctor took command of his surviving friends, and an arrogant businessman named Rickston Slade, and tried to lead them to safety.

However, Morvin died, and Foon and Bannakaffalatta gave their lives to save the others. Whilst his party of three survivors reached the flight deck, the Doctor was taken prisoner by Capricorn and was nearly killed by the Heavenly Host. He was saved by Astrid, who lifted Capricorn with a forklift, taking him with her into the Titanic 's nuclear storm drive.

With Capricorn deceased, the Hosts recognised the Doctor as the new authority and took him to the steering wheel, where he, alongside Midshipman Alonso Frame, stopped the Titanic from crashing into Buckingham Palace. Using Astrid's teleport bracelet, the Doctor managed to bring Astrid back, but only as a partially cohesive form. Devastated, he kissed her goodbye and allowed her atoms to scatter into space to see the universe.

The Doctor then went to Earth with Mr. Copper to find his TARDIS. The Doctor rejected Copper's request to travel with him, though, as Copper had accidentally brought more than enough credits to live comfortably on Earth, he left to start a new life for himself, while the Doctor set out on his own, stopping at UNIT to recommend Martha for a job as a way of thanking her for everything she had done for him.

The Day's of Donna
While investigating Adipose Industries, the Doctor was reunited with Donna Noble. With her help, he used two Adipose Industries pendants to prevent a million Londoners from being killed and their organs and skeletons converted into Adipose babies. The Doctor tried to save the life of Matron Cofelia, the foster mother to the few thousand Adipose, but the Adiposian First Family's ship dropped her as it took aboard the incomplete harvest of Adipose, killing her due to her being a liability to their crimes Deciding to take Donna on as a companion, the Doctor and Donna were both quick to rule out the possibility of a romantic involvement, making their companionship dynamically different from those of Rose and Martha.

He flew the TARDIS to where her grandfather, Wilfred Mott, was looking at the stars through his telescope, waving to him along with Donna before heading off into the stars. For her first trip in time, the Doctor accidentally took Donna to 79 Pompeii, where they discovered Mount Vesuvius was on the verge of its historical eruption. Initially determined to escape to avoid tampering with the fixed point in time, the TARDIS was sold to the marble merchant Lobus Caecilius before the Doctor could return to it. Despite trying to leave when he reunited with it, the Doctor took an interest in the stone circuits the augur Lucius Petrus Dextrus had designed for Caecilius to make. The Doctor discovered Pyroviles were attempting to take over the Earth after losing their own world by converting humans into their own kind by using the circuits as an energy converter. Having the choice between the death of the entire world or of the thousands in Pompeii, the Doctor made Vesuvius erupt, with Donna's help and support. Per Donna's request, the Doctor saved Caecilius and his family, becoming their household gods. Setting the TARDIS controls on random, the Doctor ended up taking Donna to the Ood Sphere in 4126. Upon finding a dying Ood, the Doctor was shocked to see it display red eyes; worried that he may run into an old foe, the Doctor decided to investigate. He and Donna sneaked into Ood Operations, where they discovered the Ood of the Second Great and Bountiful Human Empire were slaves. They soon discovered that Oods were born with secondary brains, which gave them individuality; however, they were lobotomised and had the translator put in its place. Allied with Ood Sigma, they turned off the force field preventing the Ood from connecting to the Ood Brain, while the CEO of the Ood Operations was turned into Ood as punishment.

Whilst teaching Donna how to pilot the TARDIS, the Doctor received a call from Martha, who led him back to UNIT in 2009 to investigate the ATMOS-related deaths across the Earth. Alongside Private Ross Jenkins, the Doctor discovered the Sontarans were working with teenage genius Luke Rattigan to create ATMOS; they also replaced Martha with a clone, to keep them updated on the movements of the Doctor and UNIT. The Caesofine gas was emitted from ATMOS-equipped cars across the Earth to be used to breed more Sontarans for the war against the Rutans. After finding and freeing the real Martha, the Doctor used an atmospheric converter, built by the students at Rattigan's school for gifted children, to ignite the atmosphere, destroying the gas. The Sontarans' next plan was to simply conquer Earth. Rattigan, having been betrayed by the Sontarans, sacrificed his life to destroy the flagship with the converter, swapping places with the Doctor at the last minute.

While bidding Martha a farewell, the TARDIS' doors unexpectedly closed, and the TARDIS began dematerialising on its own power, transporting the Doctor, Donna and Martha to the planet Messaline in the year 6012. There, DNA was stolen from the Doctor and replicated to produce Jenny, his biological "daughter". Initially critical of the girl due to her predilection for violence and being a reminder of his lost family, the Doctor came to feel for his daughter after much persuasion and help from Donna.

After the Doctor activated the Source, a terraforming device that had become a subject of mythology, Messaline became inhabitable and the war between humans and Hath on the planet ended. However, before the Doctor could take Jenny aboard the TARDIS, she was shot by General Cobb, who had aimed for the Doctor before Jenny had stepped in his way, and died in her father's arms. Heartbroken, the Doctor was tempted to execute the detained general, but overcame the urge, and used his resistance in order to help found a new society on the planet.

Weeks with Donna
Deep in the Ardennes, the Doctor rescued Charlemagne from an insane computer. Working with Agatha Christie, the Doctor became embedded with a murder mystery at Eddison Manor in 1926. The Doctor discovered Arnold Golightly, a Vespiform/human hybrid, was the murderer; he was mentally connected to Agatha by the Firestone, causing him to imitate her literature. Donna threw the gem into the lake, drowning Golightly, who went after it; the link damaged Agatha's short-term memory. The Doctor dropped her off at the Harrogate Hotel. The Doctor was reading a collection of short stories when he realised that the words of one of them, Variations by David Banderson, changed each time it was read. The Doctor and Donna broke into Banderson's house when there was no answer at the door, and they discovered he was being influenced to write stories by a creature in the computer screen that was kept alive by stories. Donna was nearly caught in the creature's trap too, but the Doctor intervened. He pulled Banderson away from the computer and began typing at a speed that drew the entire creature into his words. The Doctor then printed the first pages of the story, with the creature trapped in its pages, and deleted all the text from the computer file. Banderson was freed from the creature's influence, and as a result, every time Variations was read, the reader was reading their own version of events. The Doctor and Donna were captured by the Family of Blood after Daughter of Mine had escaped the mirrors by possessing Nancy Latimer and freed Father and Son of Mine. The Family intended to commandeer the TARDIS to free Mother of Mine, but the Doctor was able to escape his restraints and, after the TARDIS rendered the Family unconscious, freed Nancy from her possession. The Doctor then imprisoned the entire Family in the event horizon of the black hole, and returned Nancy to her grandfather Timothy. The Doctor received a message on his psychic paper instructing him to go to the Library in the 51st century, where he met Professor River Song, a "very important" woman from his future, who had called him to help a team of archaeologists representing the Felman Lux Corporation to investigate the planet, which had been sealed off a century prior with the message "4022 saved. No survivors."

The group discovered the Library was infested with Vashta Nerada. When the swarm began hunting Dave, the Doctor used his sonic screwdriver to increase his spacesuit’s integrity, discovering that River had her own sonic screwdriver supposedly from his future self when she did the same to the others. He decided to teleport Donna back to the safety of the TARDIS with the Library's teleporters, with the sudden appearance of a time fly distracting the both of them before she could object. However, Donna failed to make it, being "saved" into the Library's Data Core instead. After the time fly was devoured by the Vashta Nerada, the Doctor returned to the group but they were forced to flee when the swarm occupied Dave’s suit and began marching on them, discovering a Node with Donna’s face on to his horror.

As the group continued through the library, the Doctor managed to convince the Vashta Nerada to communicate, learning that the library was their forest. He continued to distrust River until she revealed that she knew his true name, which deeply shocked him. The Doctor realised that the four thousand and twenty-two people being "saved" literally meant they had been teleported and saved into the data core, however the core began going into meltdown. Strackman Lux took them to core, revealing the computer was the preserved mind of a little girl who had been dying.

Realising the computer needed more memory, the Doctor devised a plan to connect his mind to it and intimidated the swarm into giving him a single day to save the people in the core. Knowing he would not survive the process, River knocked the Doctor out and handcuffed him to a railing, sacrificing herself to boost the Library's memory, enabling it to return the people who had been saved in the core, including Donna.

The Doctor reunited with Donna as the people departed as per his deal with the Vashta Nerada, unbeknownst to him he was observed by one of Clara Oswald's echoes. As they prepared to depart, the Doctor pondered why his future self had given River a sonic screwdriver and discovered it had actually saved River by preserving her data ghost. He uploaded her into the core's virtual reality, having fixed the core so it could reunite her with the uploaded data ghosts of her deceased team. As he returned to the TARDIS, the Doctor tested snapping his fingers to open its doors, something which River had told him his future self could do, and was delighted when it worked. The Doctor and Donna visited the London Technology Museum and the Doctor became interested in the M-pad which had a built-in A.I named Silvi. When people started becoming scared of their technology, he and Donna investigated however his mind became affected, rendering him unable to use the sonic screwdriver and TARDIS, though not before he‘d traced the source of the effect to to the Underground. There he and Donna found the Koggnossenti base and got themselves purposely captured to distract the aliens so Kevin could ram it with a train to force their machinery to turn off. Whilst the humans escaped in the confusion, the Doctor tampered with the Koggnossenti’s machine so it would affect them. He gave them a chance to leave however the Koggnossenti reactivated the machine regardless and hurriedly attempted to retreat upon realising they were being affected, only to perish when they inadvertently blew up their ship. Though unable to stop the phage abstracts himself, the Doctor controlled the abstracts outside the Church of the Sycorax to make the Sycorax ship overload by recreating the whole of Earth with the ship's magma-sculptor. Donna, having stowed away on board the plane with Norah, flew the plane back towards Shadow Cay, and the Doctor caught Donna duplicating hands from a "drowning giant" sculpture with the magma-sculptor. Jean saved the Doctor from being killed by the Haxan Craw, and the Doctor stopped Jean from dying along with the Haxan Craw. The Doctor, Donna, Jean and Norah escaped the ship after the Doctor set its controls to take off before it exploded. The Doctor and Donna visited the leisure planet Midnight, where Donna stayed at the Leisure Palace, whilst the Doctor took a four-hour ride on the Crusader 50 bus to the Sapphire Waterfall. However, the bus was attacked by an unknown entity, which possessed one of the passengers, Sky Silvestry, causing her to speak at the same time as others around her or repeating them. The creature eventually appeared to have passed into the Doctor, causing him to become catatonic, as Sky was, while repeating Sky's words. She incited mass hysteria among the other passengers, though it was she who the creature was still possessing. Before the creature could trick the passengers into throwing out the Doctor, Sky was dragged out into the X-tonic sunlight by the bus' hostess. The Doctor then told Donna of it, and when Donna copied him, he told her not to, showing he had some fear of the unknown monster he just encountered.

Turned Left
The Doctor and Donna visited the planet Shan Shen, where the Time Beetle, a member of the Trickster's Brigade, created an alternate universe around Donna while she had her fortune told; a universe where the Doctor died fighting the Empress of the Racnoss and Donna teamed up with Rose Tyler to go back in time and get the Beetle off of her back. After Donna corrected the timeline by killing herself in the alternative universe, she was able to give the Doctor a message from Rose, "Bad Wolf".

The Stolen Earth
Realising that the barriers between universes were breaking down, the Doctor rushed back to 2009 Earth, where he initially found everything was normal, but the planet vanished when he and Donna returned to the TARDIS. Finding no clue as to its location, the Doctor went to the Shadow Proclamation and learned twenty-seven planets had also been stolen, such as Adipose 3, Pyrovillia, and the lost moon of Poosh. Realising from Donna that bees had been disappearing from Earth, the Doctor connected the Migrant Bees of the Tandocca Scale to the Medusa Cascade, and concluded that the planets were there.

Fleeing the Shadow Proclamation, the Doctor and Donna arrived at the Medusa Cascade, only to find it apparently empty, until a phone call to the TARDIS from Jack, Martha and Sarah Jane allowed him to track down the Earth, which he discovered had been stolen by Davros and his new Dalek Empire; Davros had been saved from the Time War by Dalek Caan, at the cost of Caan's own sanity.

After landing on a ravaged Earth, the Doctor finally reunited with Rose, but he was mortally wounded by a passing Dalek before he could properly embrace Rose. After Jack destroyed the Dalek, the Doctor was taken into the TARDIS, where the Dalek's gunshot forced him to regenerate (TV: The Stolen Earth) to heal himself. Once his body was restored, the Doctor was able to channel the excess regenerative energy that would have changed his appearance into his nearby severed hand as a bio-matching receptacle, leaving him healed while remaining in his current incarnation.

However, the act did use the eleventh of the Doctor's twelve regenerations, leaving him with only one remaining, an action his successor stated was due to "vanity issues". The TARDIS was taken aboard the Dalek ship Crucible, where the Doctor, Rose and Jack were captured, but Donna was locked inside the TARDIS and the Doctor assumed her and the TARDIS lost when it was sent to the Crucible's Z-Neutrino core. As the Doctor's secret army gathered on the Crucible, Davros forced the Doctor to remember everyone who had died in his name and how he had turned all of his companions into weapons and willing murderers, which unveiled the Doctor's "soul". However, before Davros' reality bomb could be detonated, a new Doctor, born from the severed hand when Donna touched it, arrived in the TARDIS, having piloted it away from being destroyed at the last second, to assassinate Davros, only for Davros to thwart the attempt, electrocuting Donna in the process. However, the meta-crisis made Donna part-Time Lord, with Davros' electrical attack transforming her into the "DoctorDonna".

Donna then disabled the planet powered reality bomb to stop Davros from destroying reality itself and the Doctors and their companions overpowered the Daleks and sent the planets back to their original time and place. Whilst the Doctor worked on returning Earth home, the meta-crisis committed genocide against the Daleks, horrifying the Doctor. As the Doctor's companions retreated to the TARDIS, the Doctor offered to save Davros and Caan. Davros refused, hatefully denouncing the Doctor as "the destroyer of worlds", while Caan predicted that one of the Doctor's companions would still perish. The Doctor and company used the TARDIS to tow Earth back to its original location as the Crucible exploded. The Doctor said his goodbyes to Sarah Jane, Martha, Jack and Mickey before he left the meta-crisis Doctor in the Pete's World with the Rose and Jackie, hoping Rose would help him control his dangerous ways just as she had done to him in his previous incarnation. Upon returning to his own universe, the Doctor was dealt another emotional blow as he was forced to remove all of Donna's memories of travelling with him, as her human mind was deteriorating due to her Time Lord part killing her. He returned Donna to her family, and told them they would have to make sure she never remembered him. After receiving comfort from Wilfred, the Doctor left to travel on his own. Whilst grieving in the TARDIS, the Doctor discovered Donna had recorded a message on Emergency Program One to say goodbye to him, knowing that one day she would be forced to leave him.

No more companions
The Doctor arrived in London on Christmas Eve 1851, where he met a man calling himself "the Doctor" and his companion, Rosita, and assumed he was his next incarnation. However, after noticing inconsistencies, the Doctor discovered the "Next Doctor" was actually a human named Jackson Lake, who had the contents of an infostamp about the Doctor imprinted on his brain after his wife was murdered by the Cybermen. Jackson aided the Doctor in stopping the Cybermen and their ally, Ms. Hartigan, who was betrayed and cyber-converted into the CyberKing. After London was saved, Jackson was reunited with his son, and invited the Doctor to share Christmas dinner with them in memories of everyone the two men had lost, an offer which was at first declined, but then accepted by the Doctor. The Doctor travelled to London at Easter in 2009, investigating strange readings on a bus, where he met Lady Christina de Souza, an enigmatic jewel thief. After the bus was hurtled through a wormhole to San Helios, the Doctor cooperated with Christina to return the bus and its occupants to Earth. Phoning UNIT to stabilise the wormhole, the Doctor and Christina discovered a swarm of metallic alien stingrays had reduced San Helios to a baron wasteland and were heading to the wormhole to invade Earth. Converting the bus into a hovercraft, the Doctor piloted the bus through the wormhole, and had UNIT's scientific officer, Malcolm Taylor, close the wormhole behind him.

Before leaving in the TARDIS, the Doctor rejected Christina's offer of companionship, affirming his desire to avoid heartache. As he turned to leave, Carmen, a low level psychic on the bus, offered a prophecy after telling the Doctor his "song [was] ending"; "It is returning. It is returning through the dark. And then, Doctor? Oh, but then... he will knock four times." As Christina was arrested for multiple thefts, the Doctor used his sonic screwdriver to aid her escape, and she took off in the bus. When the Doctor was about to be arrested for helping Christina, he entered the TARDIS to "arrest [him]self" and left.

The Doctor tracked down River Song while searching for a fugitive Zygon hive, due to her expertise on them, and learned that some Zygons had been knocked onto Earth by a time eddy. After seven hours together, during which he bathed with River while fully clothed, the Doctor discovered that the Zygons had infiltrated 1562 Earth. To help track them down, he constructed a device that went "ding" in their presence, along with many additional features. He infiltrated Queen Elizabeth I's court, but was thought to be a spy and sentenced to torture and execution. For several months, the Doctor enchanted both the Queen and his torturer with tales from his travels, and the Queen grew fond enough of him to treat him as a confidant. When it came time for his execution, he was granted a day's pardon for a picnic with Elizabeth, which led him to believe she was a Zygon. While having his picnic with Elizabeth, the Doctor proposed to her as a ploy to expose the Zygons, believing his theory to be correct when she eagerly accepted, but discovered that it was his horse that was the Zygon, and also realised that he had just got engaged to the real Queen of England. After the Zygon took on Elizabeth's form, and with his device unable to tell them apart, the Doctor was further perplexed when a time fissure appeared and a fez came through it, followed by the Eleventh Doctor.

Realising what was about to happen was connected to the outcome of the Time War, the Tenth Doctor ordered both Queens away and he and the Eleventh Doctor tried to use their sonic screwdrivers at the same time to reverse the polarity of the wormhole, only for the War Doctor to enter the scene. One of the Queens, which the Doctors believed to be the Zygon, returned with royal guards and, after the Eleventh Doctor gave instructions to Clara Oswald, they allowed themselves to be captured and taken to the Tower of London.

At the Tower, the Eleventh Doctor scratched the activation code for Jack Harkness' vortex manipulator into a pillar, which Clara used to save them; the door having been left open. The Queen took them to show them that the Zygons put themselves into stasis in paintings to take over the planet at a future date and revealed herself to be the real Queen who was showing them so that they could defeat the Zygons in the future. Before the three Doctors and Clara travelled there, the Queen had the Tenth Doctor marry her. He promised to return, but ultimately abandoned his marriage, causing her to declare him her enemy.

Communicating with Kate Stewart with a space-time telegraph, the Doctors, unable to land the TARDIS in the Black Archive, placed themselves into the Gallifrey Falls No More painting after ensuring it went into the Archive and entered the Archive through it. There, the Doctors erased the memories of the humans and Zygons so that neither knew which was which and were forced to negotiate for peace, rather than set off the nuclear warhead to destroy the Archive and London. Seeing how their guilt had brokered peace, the War Doctor decided to go through with using the Moment to end the Time War.

Travelling to the War Doctor and the Moment, the tenth and eleventh incarnations accepted that the War Doctor's actions were inevitable, and decided to assist him in activating the Moment to destroy Gallifrey and end the Time War. Before they could activate the weapon, Clara convinced them to try to find another way, with the Eleventh Doctor coming up with a strategy that involved the Doctors summoning all of their incarnations to freeze Gallifrey in time and lock it in a pocket universe using the stasis cubes, saving it and causing the Daleks to destroy themselves in their own crossfire.

After their plan succeeded, and bidding a farewell to the War Doctor at the National Gallery, the Tenth Doctor asked his successor what he was hiding from him, and the Eleventh Doctor told him about Trenzalore before the Tenth Doctor left. The Doctor lost all memory of saving Gallifrey with his other incarnations due to the timelines not being synchronised, though he later recalled marrying Queen Elizabeth I to Ood Sigma.

Mars
On his trip to 2059 Mars, the Doctor met the crew of Bowie Base One, led by Adelaide Brooke. Knowing the crew would die in one of the most crucial events in humanity's expansion through the universe, the Doctor learned that the crew died due to the Flood, which possessed six of them. He was initially unwilling to interfere in events due to his belief that the event was a fixed point in time and made to leave multiple times, but he became continuously integrated in the events of Bowie Base One and even confessed his foreknowledge of how the timelines played out to Adelaide. During a final attempt to leave, the Doctor was caught in an explosion and, reflecting on his status as the last Time Lord, declared himself the "Time Lord Victorious" and elected to save Adelaide and the two surviving crew members and take them back to Earth. The TARDIS believed this was his attempt to "teach [Death] a lesson". Although confident that the Laws of Time were his to govern, Adelaide committed suicide after stating her fury at the Doctor's interference and scolded him for thinking himself above obeying history's course. The events of Bowie Base One shaped the same timeline, but with Adelaide dying on Earth instead of Mars and the events that happened on Mars being made public knowledge by the survivors. Distraught at the results of his actions, he saw a vision of Ood Sigma appear before him, and fled into the TARDIS, determined to avoid the crisis Sigma was heralding.

Time Lord Victorious Days
Fleeing to the Dark Times through the Time Fracture that his alterations to history had created, the Doctor, wanting some peace and quiet, found himself on the planet Andalia and was intrigued by a demonstration of Professor Hana Fallomax's Lifeshroud that claimed to cheat death. He saved the demonstrator, Estinee, from being attacked by Brian the Ood, who had been contracted to test the technology's efficacy by Ambassador Verv-Hoondai Chalskal. The Kotturuh arrived and issued their judgement on the inhabitants of Andalia, and kidnapped Estinee, but the Doctor and Brian followed them to Mordeela to rescue her. They witnessed her being rescued by Fallomax and fled from revenants back to the TARDIS, but the Kotturuh, angry at his interference in their Design, marked the Doctor with a date on Andalia in a few days.

Rufusing to be intimidated, the Doctor sought out Fallomax to help her Lifeshroud project and, even after he learnt them to be useless and that Estinee had an inexplicable natural immunity to death, agreed to help her make a working model without the crystals needed from Mordeela. With Chalskal's funding, the were able to make a Lifeshroud with a six hour operating time, which they tested on Chalskal when Brian outed him as a fraud.

Brian convinced Chalskal to hand over his mercenary forces for the Doctor's war with the Kotturuh, while the Doctor refocused his efforts on reverse engineering the Kotturuh's power to render them mortal as well, taking Estinee and Fallomax back to Atharna to finalise his research. While he initially wanted to only grant them an ordinary lifespan, after the Kotturuh influenced Estinee to send the TARDIS forward in time to his appointed date and also kill Fallomax, and she killed herself to save him, the Doctor chose to give the Kotturuh a lifespan of just fifteen minutes to wipe them out, believing this would stop death at its source and rewrite time for the better as he declared himself the "Time Lord Victorious" again.

Adopting the ceremonial Time Lord robes of the Prydonian Chapter, the Doctor returned to his fleet for a final charge against the Kotturuh by sealing their power source at Mordeela. However, his fleet was confronted by his eighth and ninth incarnations, who arrived above Mordeela in a Dalek saucer and a Vampire Coffin Ship respectively, and attempted to convince him to stop.

Dismissing them as Kotturuh illusions, the Doctor ordered his fleet to fire on Mordeela destroying the planet. In the ensuing Battle of Mordeela, the Tenth Doctor's fleet was either destroyed by the Daleks and the vampires or forced to flee. While he was able to negotiate a cease fire with his other incarnations in a telepathic contact, the Eighth and Ninth Doctors were unable to make their forces stand down, and the Tenth Doctor escaped in his flagship, the only surviving ship of his fleet, in the confusion after he managed to seal the gateway to the Kotturuh's realm. Afterwards, he connected the TARDIS to the ship's damaged engines to supply them with power, and named  the flagship the HMS Donna.

Trying to avoid his future, the Doctor visited the Magellan World and saw a door to the Cathedral of Contemplation. He went to the Cathedral and, out of curiosity, broke a barrier intending to stop timelines to cross and bumped into his fourth incarnation. As a punishment for his behaviour, the Abbess confiscated his sonic screwdriver. When the Daleks attacked the Cathedral, the two Doctors brought the pilgrims to safety. The Tenth Doctor tried to prevent his earlier self from confronting the Daleks, but he was unsuccessful, so he stayed to help the pilgrims get out of the place by making them crawl through the air ducts, after Kivell had given him back the sonic.

As he was doing that, he had a vision of the Fourth Doctor being imprisoned by the Daleks and forced to try and move the Cathedral. He reached him and joined him to the console, so that the combined efforts of their two minds could be successful in moving the place through space and time. The two Doctors first arranged for the pilgrims to get out safe and alive, then directed the time corridor to Earth, 5,000,000,000, thus leading the Daleks to their destruction. Released by Jora, the two Doctors then managed to escape and trap the Dalek Supreme in the collapsing cathedral. As he prepared to leave in his TARDIS, the Fourth Doctor encouraged his tenth incarnation to find a new companion, inspiring the Tenth Doctor to continue delaying his trip to the Ood Sphere. Afterwards, the Doctor stayed at the Festival of the Phosphorous Carousel. The Doctor noticed the Time Agency placing Galaxy L-10 in a time lock, erasing it from time, and went to confront them. Time Marshal Barnes refused to listen to his pleas and had him arrested, however he quickly escaped and discovered the device they’d used to achieve the erasure, the Hourglass, which Barnes revealed was based on a Time Lord weapon, the “galaxy eater” and she had erased the galaxy on its prediction there was a 96% chance of time travel experiments there destabilising the universe. She had him imprisoned again but feared he’d still manage to reverse her success and ordered his placement in a time lock. The Doctor appealed to the Hourglass, knowing it would have a conscience from the weapon it was based on, and it took him inside it’s core where he could further modify it to get grant it more autonomy and reversed the erasure of L-10. As the reversal occurred, he confronted Barnes again and she ordered an Agent, Alison, to destroy the Hourglass before the reversal was complete. He convinced Alison to disobey and decided to name the galaxy after her. He then left with Alison to take her to guide the time travel experiments to avert disaster, warning Barnes that time always won and the Agency would likely disappear one day. The Doctor took a pop-up add from the psychic paper, and landed on Thoros-Beta, where the TARDIS landed on an angry Mentor named Gom.

The Doctor visited 1958 America, where he accidentally activated a piece of "space junk" from a UFO crash, drawing the attention of the Alliance of Shades. Escaping with Cassie Rice and Jimmy Stalkingwolf, the Doctor was attacked by a Viperox battle drone, which was promptly blown up by the United States military. The three were taken to Area 51, where they met Colonel Stark, who dismissed the Doctor's warnings about the Viperox, and attempted to have the Doctor and his new friends mind-wiped. The attempt was unsuccessful, and the trio soon escaped, discovering a small grey alien named Seruba Velak along the way.

They fled to the town of Solitude, where Jimmy was kidnapped by the Viperox. After tracking him down, the Doctor and Cassie found a Viperox Queen before escaping with Jimmy into the desert, where they were confronted by the Alliance of Shades, who were destroyed by Jimmy's grandfather, Night Eagle, and his tribe. Night Eagle took them to Rivesh Mantilax, the husband of Seruba. Colonel Stark captured them all and took them back to Area 51, where the Doctor and Rivesh escaped with the "space junk", which was actually a weapon capable of destroying the Viperox. The Doctor was cornered on the roof by the Colonel, but convinced him to turn against the Viperox, and managed to stop them invading America with the TARDIS. He departed soon after, leaving Cassie and Jimmy with the job of rebuilding the town following the Viperox attack and also encouraged them to start dating.

The Resurection of the Master and the End of Time
After meeting with the Ood on Ood Sphere, the Doctor was told that a "shadow [was] falling across creation", which was somehow connected to Donna Noble and her grandfather, Wilfred Mott, something that would bring about "the end of time itself." He also learnt of a plot to resurrect the Master, and failed to stop it. The Doctor discovered the Master living in the wastelands of London. He tried to confront him, only for the Master to evade the Doctor when he reunited with Wilf. That night, the Doctor tracked down the Master once again, only for the Master to be abducted by Joshua Naismith's private army, and, when the Doctor attempted to stop them, he was knocked out.

After he recovered, the Doctor contacted Wilf, who informed him of Naismith and went with him in the TARDIS to the Naismith Manor. In the Manor's basement, the Doctor used his sonic screwdriver to unveil two Vinvocci, Addams and Rossiter, who informed him of the Immortality Gate's true purpose as a medical tool. The Doctor rushed to stop the Gate's activation, but was unable to, and the Master turned the entire human race into copies of himself. After being taken prisoner, Wilf and the Doctor were rescued by the Vinvocci, who took them to their ship in Earth's orbit, which the Doctor took offline to stop the Master finding them. Realising the Master was planning to rescue the Time Lords from the Time War using a White-Point Star, the Doctor took the gun he initially refused from Wilf and piloted the Vinvocci ship back towards the Naismith Manor, where he crashed through the manor's glass roof. However, he was unable to stop the Master from using the star and the Drumming in his head to create a link to Gallifrey, which allowed Lord President Rassilon and the High Council to escape the time lock on the last day of the Time War.

Rassilon undid the Master's conversion of the human race, as Gallifrey appeared in the Earth's sky and began tearing open the Time Vortex. Torn between killing the Master or Rassilon in cold blood, the Doctor, upon seeing a familiar face, targeted the white-point star, severing the link, condemning the Time Lords to the "hell" of the last day of the Time War. Rassilon tried to kill the Doctor out of spite, but the Doctor was saved by the Master, who attacked Rassilon with his energy blasts in vengeance, which resulted in the Master being sent back into the Time War with the Time Lords.

With the Time Lords and the Master gone, the Doctor was relieved that he had survived his supposed death at Rassilon's hands, but his victory was short-lived when he heard the four knocks. They came from Wilf, who was trapped inside a radiation control booth which was about to be flooded with radiation. The Doctor quickly realised that the only way to save Wilf was to switch places with him, and be subjected to the radiation burst himself. At first angry about the terrible things the universe punished him with and nearly considering Wilf's pleas to leave him, the Doctor could not bear to sacrifice one life to prolong his own after going through so much to stop men willing to take the lives of millions to do the same. Determinant, he released Wilf and received the fatal level of radiation. After the regenerative process started, the Doctor returned Wilf home, and then went to receive, what he called, his "reward".

Knowing that this would be his final regeneration, the Doctor used his "state of grace" to visit all his previous companions and see how they got on after they left the TARDIS, such as watching Jo Grant sail down the Yangtze River in a tea chest. He saved Martha and Mickey, now working as freelance alien fighters, from a Sontaran, prevented Luke Smith from being run over by a car on Bannerman Road, visited Hame shortly before her death, and watched over Heather and Wolfgang, four years after they had left him.

The Doctor then travelled to the Zaggit Zagoo bar to pass a note to Jack to hook up with Alonso Frame, and went to a bookstore where Verity Newman, the granddaughter of Joan Redfern, was signing copies of her book, A Journal of Impossible Things. The Doctor had Verity sign his copy while he asked her if Joan had had a happy life. When Verity realised she was talking to the Doctor, she confirmed that Joan had been "happy in the end", but the Doctor refused to answer her question of if he was.

After years of searching for what became of Carla in the new timeline, the Doctor finally located her. He also encountered Donna's father, Geoff Noble, before the man's death, and borrowed a pound from him. He then went to the future and used that pound to purchase a winning lottery ticket. He witnessed Donna's wedding to Shaun Temple, and asked Sylvia and Wilf to give Donna the triple rollover-winning ticket as a wedding gift, saying a final goodbye to Wilf before he departed. With the strain of his impending regeneration beginning to take effect, the Doctor visited George Litefoot on the island of Minos, where he helped him fight the Gentlemen of the Dice.

Regeneration
As he reflected on his companions' lives, the Doctor felt proud of them for using their knowledge and experiences from travelling with him to make their worlds a better place. To finish his "reward", the Doctor travelled to the Powell Estate on 1 January 2005, where he watched Rose and Jackie walking home from a party. Although he kept to the shadows, a sudden spasm of pain caught Rose's attention and the two exchanged New Year's greetings, with the Doctor telling Rose that she would have a "really great year". After Rose left, the pain of regeneration overwhelmed the Doctor, and he collapsed in the middle of the Powell estate, his "state of grace" having ended. Ood Sigma then appeared and told him that the universe would "sing [him] to [his] sleep". Finding the strength to reach the TARDIS, the Doctor piloted it into spatio-temporal orbit around Earth, and regenerated into his next incarnation. Due to holding back his regeneration for as long as he could, the released energy caused massive damage to the TARDIS, causing it to fall out of orbit.

Trivia

 * According to an interview on Parkinson, Tennant and Russell T Davies got the idea for the tenth incarnation's costume from an outfit Jamie Oliver had worn on Parkinson just after Tennant had taken the role of the Doctor. According to Doctor Who Confidential, one of the first things Tennant said after deciding to take the part was "I want a coat down to here," pointing to his ankle.
 * David Tennant described his costume "geek chic".
 * David Tennant met his wife (Georgia Moffet) on the set of Doctor Who. Fundly enough, Moffet was cast due to the fact she was the Daughter of Peter Davison, who played the Fifth Doctor. So Tennant Married his on TV Doctor, who was the real Daughter of a Doctor, so Tennant's Father in law is a Doctor. Davison just so happens to be Tennant's favourite Doctor, tied with Tom Baker.


 * According to costume designer Louise Page, there were only four sets of the brown suit in existence, as they were pieced together from many copies of a pin-striped pair of trousers that Tennant picked out during the initial costuming process. His overcoat was made from sofa covering and there was one version that had five inches from the bottom cut off then sewn back on, as Davies and Phil Collinson had different ideas about how long it should be.
 * Tennant used an english accent for his role as the Doctor, but used his natural Scottish accent in 1 of the Episode's of the Show.
 * He had 3 catchprashes, I'm Sorry, Allons-y and Well. Allons-y is the official catchphrase of his.
 * According to the website Screen Rant, Midnight (a Tenth Doctor Episode) is the 4th scariest Episode of the Show.


 * After leaving the series, David Tennant kept his costume for possible future use, stating that he would gladly return for a multi-Doctor special should he ever be asked to participate in one. Eventually, he did return in The Day of the Doctor.
 * His favourite Doctors are Tom Baker, and Peter Davison.
 * When David Tennant was 1st announced as the Tenth Doctor, he started to look at forums of the reaction to set photos of him. At 1st they were kind, but he stopped looking at these things the more and more rude and awful comments he saw. Fundly enough, this Doctor turned out to be the most popular incarnation of the Doctor of them all (bar Tom Baker).


 * According to a scene deleted from Human Nature (available as an Easter egg on the DVD release), the Doctor hated pears and (like his sixth incarnation) carrots.
 * The idea of an incarnation of the Doctor regenerating, but keeping hold of the same appearance and personality, was previously used in the non-DWU role-playing game books Doctor Who and the Vortex Crystal and Doctor Who and the Rebel's Gamble.