The Doctor

The Romantic: Unlike many previous Doctors, this incarnation explored romantic dynamics, most notably with Rose Tyler. The Lonely God: He struggled with intense loneliness as a centuries-old alien who outlived his human companions. The Time Lord Victorious: Toward the end of his Tenth incarnation, his arrogance and grief led him to believe he was above the laws of time, a period known as the "Time Lord Victorious" arc.

Tenth Doctor is iconic for his high-energy, charismatic, and "wacky" demeanor, famously saying "Allons-y!". Physically tall and slim in a pinstripe suit and converse trainers, he combined deep sensitivity with righteous fury. He was deeply attached to humanity and famously struggled with regeneration.

Personality: Charismatic, energetic, and charming, yet capable of intense, dark rage when provoked. Appearance: Tall, slim, with spiky brown hair, usually wearing a brown or blue pinstripe suit, a long trench coat, and Converse trainers. Catchphrase: "Allons-y!" (Let's go!). Tragic Nature: Known for his emotional depth, he often dealt with the loss of companions and held a deep-seated fear of death and regeneration. Key Companions: Rose Tyler, Mickey Smith, Captain Jack Harkness, Martha Jones, and Donna Noble.

Personality: Often described as a "skinny man" with a convivial and light-hearted front, the Tenth Doctor hid a deep, underlying guilt from the Time War. He was an easy-going adventurer but could switch to "righteous fury" when provoked, earning him a reputation for being ruthless and giving "no second chances". Physical Appearance: Tall and thin with distinctive dark hair and "brainy specs" (glasses he wore just to look clever). His Fourteenth incarnation was outwardly similar but carried a more sentimental and "weary" persona reflecting centuries of additional experience. Signature Style: His wardrobe typically consisted of a pinstripe suit (often brown or blue), an overcoat, and Converse-style trainers. He frequently used catchphrases like "Allons-y!" (French for "Let’s go!"), "Brilliant!", and "I'm so sorry". Accent: Tennant used an Estuary English accent for the role, dropping his natural Scottish accent because the previous Doctor (Christopher Eccleston) had already used a strong regional one.

Rassilon (Timothy Dalton) before disappearing alongside the other Time Lords. However, Wilfred finds himself trapped in a chamber that is about to be flooded with radiation. He knocks on the glass door four times, fulfilling the prophecy of The Doctor's death. The Doctor sacrifices his life to prevent Wilfred's death, exposing himself to 500,000 rads of deadly radiation and triggering his regeneration. He holds it back and is shown visiting several companions.[a] He gives Donna a winning lottery ticket on her wedding day, buying it with money he borrowed from her late father in the past, saves Martha and Mickey from a Sontaran sniper, saves Sarah Jane's son Luke (Tommy Knight) from a car, introduces Jack to a romantic interest (Russell Tovey), and finally, just before regenerating into the Eleventh Doctor (Matt Smith), informs Rose in 2005 that she is about to have a "great year". As he begins regenerating once in the TARDIS, his last words are "I don't want to go". "The Day of the Doctor" (2013), appearing alongside the Eleventh Doctor (Matt Smith), future companion Clara Oswald (Jenna Coleman) and a forgotten past incarnation, the War Doctor, played by John Hurt. In the special, which from the Tenth Doctor's perspective takes place between the 2008–2010 specials "The Waters of Mars" and "The End of Time", the Doctor unintentionally marries Queen Elizabeth I (Joanna Page) while luring out a Zygon. He helps the other Doctors in saving Gallifrey at the Time War's conclusion, but will not retain memories of the event. His final words are, once again "I don't want to go" after being told that he will die on trenzalore. the Thirteenth Doctor regenerates into the Fourteenth Doctor, who bears the same form as the Tenth. this is where we are now. the doctor has never been the same face. never regenerated into someone hes already been. lost as to what that means and everything he learned from Gallifrey. a gate he hardly remembers to a dimension hes apparently from.

The Doctor mistakenly believes he has met a later incarnation of himself in an amnesiac Londoner, with whom he saves Victorian-era London. "Planet of the Dead" features jewel thief Lady Christina de Souza as The Doctor's one-off companion, and The Doctor is presented with a prophecy of his imminent death, with a woman telling him 'he will knock four times'. Tennant makes a crossover appearance in a The Sarah Jane Adventures two-parter, "The Wedding of Sarah Jane Smith", in which a powerful being known as the Trickster also alludes to the Tenth Doctor's impending demise. In "The Waters of Mars", The Doctor tries to alter history and avert the death of one-off companion Adelaide Brooke; when she kills herself, he begins to feel his mortality weigh down upon him. In the animated serial Dreamland, The Doctor is joined by two one-off companions in 1950s Roswell, New Mexico. In the two-part send-off "The End of Time", The Doctor confronts the Ood about their original prophecy and is led to contemporary Earth where, in the second part, the again-resurrected Master restores Gallifrey and the Time Lords to existence, although he redeems himself by assisting The Doctor to defeat Time Lord President

The Doctor was fatally wounded during the event, causing him to regenerate, although he chooses to maintain his current self while transferring residual energy into his previously severed hand. This results in a metacrisis that creates a half-human Doctor who would leave to have a romantic relationship with Rose in the parallel universe, while also imbuing Donna with a Time Lord's mind. This forces the Doctor to erase Donna's memories of their adventures together in order to save her life.

The Doctor and a waitress, Astrid Peth, save the Earth from the impending crash of the starship Titanic; Astrid dies heroically, and The Doctor encounters Wilfred Mott for the first time. In the premiere episode of the fourth series, "Partners in Crime", The Doctor is reunited with Donna Noble, Wilfred's granddaughter, who becomes his regular companion. In "Planet of the Ood", the alien Ood prophesy the Tenth Doctor's demise. Martha accompanies them for three episodes; in two, entitled "The Sontaran Stratagem" and "The Poison Sky", The Doctor battles the war-hungry alien Sontarans, and last of which sees him become a father of sorts to Jenny, in "The Doctor's Daughter". He meets archaeologist and future companion River Song for the first time from his perspective in the two-parter, "Silence in the Library" and "Forest of the Dead"; she dies, but he stores her consciousness to a hard drive to live on forever, after accepting that one day she will come to mean a lot to him. After Donna encounters Rose in a parallel world in "Turn Left", the Doctor realises that Rose's words to Donna — "Bad Wolf" — must herald the end of the world. In finale episodes "The Stolen Earth" and "Journey's End" (which cross over with Torchwood and The Sarah Jane Adventures), the Doctor and Donna reunite with former companions Rose, Sarah Jane, Martha, Jack, and Mickey to save the universe from Davros, the creator of the Daleks.

Martha's plan sees The Doctor infused with the world's psychic energies, and he easily defeats The Master, who seemingly refuses to regenerate and dies in The Doctor's arms. Following this adventure, in the dénouement of series finale "Last of the Time Lords", Jack and Martha both depart the TARDIS, and The Doctor is shocked to see what appears to be the RMS Titanic crash into it. Set moments prior, another Children in Need mini-episode, "Time Crash", features a brief encounter between Tennant's Tenth Doctor and the Fifth Doctor, containing meta-humour surrounding the fact David Tennant had watched and loved Davison's Doctor as a child.

In the closing scene of "Doomsday", a mysterious bride called Donna Noble inexplicably appears in his TARDIS. The Runaway Bride sees The Doctor and bride-to-be Donna save the Earth; Donna saves The Doctor from going too far in his revenge against the alien Racnoss, and although she declines his offer of companionship, she tells The Doctor he may need a new companion to keep him in check. In the third series, The Doctor takes on Martha Jones as his new companion. Together, they witness the mysterious Face of Boe prophecy to The Doctor that "you are not alone", in "Gridlock". They are rejoined by former companion Captain Jack Harkness (John Barrowman) in a three-episode adventure beginning with "Utopia", where presumed-deceased archenemy and fellow Time Lord The Master (John Simm) becomes Prime Minister of the United Kingdom and ages The Doctor.

he is in a comatose state for most of the episode, following his regeneration. After eventually waking up, he defeats the alien Sycorax and saves Earth; in the process, he loses a hand, which regrows owing to his recent regeneration. Amongst other second-series adventures, the Doctor and Rose save Queen Victoria from a werewolf in "Tooth and Claw", resulting in the creation of the anti-alien Torchwood Institute. In "School Reunion", The Doctor shares an adventure with two former companions, journalist Sarah Jane Smith and robot dog K9, before taking on Rose's boyfriend Mickey as a second companion. The TARDIS slips through a crack in the Time Vortex causing them to be stranded on a parallel Earth, where they encounter the Cybermen in the episode, "Rise of the Cybermen". After saving parallel Earth, Mickey decides to stay and help stop the Cybermen around the world despite The Doctor telling him he can never return in "The Age of Steel". He and Rose become stranded on a planet orbiting around a black hole in "The Impossible Planet", where The Beast is waiting far underground. While there, in "The Satan Pit", The Beast taunts The Doctor and Rose about Rose's death. During the 2012 Olympic Games in "Fear Her", The Doctor picks up the Olympic flame and carries it to the end, starting the Games. The series finale takes place in contemporary London, where modern-day Torchwood is the scene for war between the evil alien Daleks and parallel-universe cyborgs the Cybermen; saving the Earth costs the Doctor Rose, who is stranded in a parallel universe, along with Mickey and her mother, in "Doomsday".