Twelfth Doctor

The Twelfth Doctor was an incarnation of the Doctor that initially travelled with Clara Oswald. He emerged from the Eleventh Doctor's explosive regeneration on Trenzalore, being the product of what his predecessor called "regeneration number thirteen" as well as being the first incarnation of the Doctor's second regeneration cycle.

A chaotic beginning
After fighting in the Siege of Trenzalore for 900 years, (PROSE: Tales of Trenzalore: The Eleventh Doctor's Last Stand), the Eleventh Doctor was succumbing to old age, as well as extermination from the Daleks. Ready to accept that he was about to reach the end of his life, Clara Oswald appealed to the Time Lords to intervene and and he received a new regeneration cycle. After using his regenerative energy to destroy the attacking Daleks and their mother ship, he returned to his TARDIS to complete his regeneration.

Shortly after taking off in the TARDIS, he completed his regeneration. The new Doctor first expressed surprise at feeling his new kidneys, stating "I don't like the colour!" Suddenly the TARDIS started shaking violently, and when Clara asked him what was happening, he stated that they were crashing and he had forgotten how to control the TARDIS, much to Clara's dismay. (TV: The Time of the Doctor)

After crashing on pre-historic Earth, where the Doctor and Clara got into an incident where the TARDIS with them inside was swallowed by a female Tyrannosaur, the TARDIS brought the Doctor, Clara, and the dinosaur to Victorian London, where the Doctor was reunited with the Paternoster Gang. Though still suffering from partial amnesia and occasional delirium as after-effects of regeneration, he learned Clockwork Droids had been harvesting humans to repair themselves. Their leader, the Half-Face Man, sought to reach the Promised Land. The Doctor confronted the Half-Face Man, and warned him that he would do whatever necessary to protect innocent humans that the droid was targeting.

Trying to speak on peaceful terms, the Doctor snapped the droid out of his illusion of the "Promised Land" by revealing the true state of his existence. After switching out spare parts so many times, his original self had been entirely replaced. Knowing he would not go to a promised land or be truly alive, the Half-Face Man's logic dictated him to self-terminate, but he said it was against his basic programming, struggling against the Doctor. The Doctor replied that murder was against his "programming", but then said that one of them was lying about his basic programming. Conflicted and fearful, the Half-Face Man fell out of his escape pod, either jumping or having been pushed by the Doctor.

The Doctor, having completely regained his memory and senses, briefly left Clara behind to redecorate the console room and settle on a new outfit. Attempting to return her to 25 December 2013, the Doctor ended up in Glasgow by mistake. However, they decided to go out for coffee after the Eleventh Doctor called Clara and encouraged her to help the new Doctor. (TV: Deep Breath)

Am I a Good Man?
Leaving Clara behind in Glasgow to get coffee, the Doctor saved a Dalek resistance fighter named Journey Blue, but failed to save her brother, Kai. As soon as he brings Journey back to her ship the Aristotle she says they have someone who needs a doctor's help. Entering a room the Doctor is shocked to see the person needing a doctor is in fact a Dalek, shocking him even more was the revelation that this Dalek had developed a fault in it's system and had turned good, though with a strong desire to see his kind destroyed, the Doctor afterwards returned for Clara three weeks later from her perspective.

While travelling back to the Aristotle the Doctor asks Clara a serious question, and he asks her to answer it as blunt as possible: 'Am I a good man?' Before Clara could give him a proper answer the duo return to the Aristotle and joined a team to shrink into the Dalek and fix it.

Inside the Dalek the Doctor gets enraged when he sees members of the team firing their devices as he explains to them that Daleks weren't just machines, they actually have living organisms inside the casing, however the Dalek's anti-bodies appear sensing danger and manages to kill one of the team members. After escaping and landing in a pool of liquefied remains the team succeed in fixing the Dalek's fault. However, fixing the Dalek - whom the Doctor had nicknamed Rusty - caused it's destructive nature to reboot, causing the deaths of many of the Aristotle crew. After some thinking (and a good slap in the face from Clara as the Doctor was stubborn that there couldn't be such a thing as a good Dalek) the Doctor decided to help remind Rusty about what made it realise the Dalek's way of thinking was wrong: Rusty saw a star being born, making it realise there was beauty in the universe. In an attempt to convince Rusty to remember how it changed, the Doctor mind linked with the Dalek, at first this mind link seemed to be working as Rusty commented on the universe's beauty and perfection which pleased the Doctor as his plan seemed to be working.

However the Doctor's plan started to unravel in front of him as the Dalek delved deeper into his mind and saw the Doctor's hatred of the Daleks, the Doctor now panicking and trying to convince Rusty to not latch on to his hatred for the Daleks watched in horror as Rusty, now good again but with a bloodlust to kill his kind thanks in part to the Doctor's hatred for the creatures, went on to destroy the Daleks that had responded to it's distress beacon. After returning to his original size and learning of Rusty's plan to lie to the Daleks by saying the ship had started it's self destruct sequence the Doctor commented that Rusty was a good Dalek, to which Rusty denied as there are no good Daleks. However, before it left to ensure the Daleks did not further attack the Aristotle, Rusty commented that the Doctor himself would have made a good Dalek.

After leaving without saying a proper good bye to the crew of the Aristotle the Doctor dropped Clara back at her school, before she leaves the TARDIS she says 'I don't know', making the Doctor turn to her in confusion as she says that was her answer to his earlier question: 'Am I a good man?' (TV: Into the Dalek)

Early exploits
Spending some time on his own, the Doctor became alerted to a creature that disguised itself as a motorway to consume planets into other dimensions. Summoning Clara to assist him, the Doctor was surprised when the creature disappeared, unaware that Clara had tricked the creature into consuming itself. (COMIC: Road Rage)

The Doctor and Clara used a slime explosive to foil the Sibro's attempt the weaponize an Chanlanian clock tower. (COMIC: Chime Time)

Undated adventures

 * The Twelfth Doctor joined his previous selves in helping place Gallifrey in a pocket universe at the end of the Last Great Time War. (TV: The Day of the Doctor)
 * The Doctor, along with his other incarnations, attended Alistair Gordon Lethbridge-Stewart's funeral. (PROSE: The Gift)

Personality
A sarcastic man, (COMIC: Chime Time) the Twelfth Doctor was dark and manipulative, willing to place his companions in danger if it meant appeasing his curiosity. Despite this, he would fight to protect those in his care, and would react with devastation if harm befell them. Such was his reaction to the death of a female Tyrannosaurus rex that had been inadvertently dragged through time by the TARDIS. (TV: Deep Breath)

The Twelfth Doctor showed even less restraint than his predecessor, and would get frank and physical with his enemies. (TV: Deep Breath) However, he often skirted a jagged line between right and wrong values due to his own conflicted sense of morality and a struggle with his inner darkness, such as being influenced by narrow preconceptions of his enemies.

Following his long stalemate with the Daleks on Trenzalore, this Doctor's hatred toward the Dalek species was exemplified to a level rarely demonstrated by other incarnations, blinding him into becoming somewhat close-minded as he dealt with their presence. After considering the right course of action to perform on a malfunctioning Dalek, he decided to fix it, reasoning that it was impossible to be good despite a universe that was full of unexplored possibilities. This choice horrified those in his presence, notably Clara, who became angered to the point of slapping him. (TV: Into the Dalek)

Though he retained a respect for humanity, the Twelfth Doctor would insult them for being slow minded and violent, dubbing Earth the "planet of the pudding-brains". He also claimed to dislike Karaoke and mime. (TV: Deep Breath)

He stated that murder was against his moral code. Indeed, the Doctor showed some reluctance killing the Half-Face Man, offering him a drink of alcohol and trying to persuade the clockwork droid to self-destruct of his own free will. (TV: Deep Breath)

However, the Twelfth Doctor, like many of his past incarnations, was heavily inclined to err toward a greater good and put the survival of the many above a single individual. Through this attitude, he acted like a pragmatist that would not hesitate to abandon someone whose fate was already sealed. He also disliked soldiers because of their hidebound nature, to the point where he found them painful to take on as companions even if they still had good virtues under their military-mindedness. (TV: Into the Dalek)

Twelfth also voiced a longing for TARDIS roundels, since his console room lacked them. (TV: Deep Breath) He also retained some suspicion on how he came to meet Clara, (TV: The Bells of Saint John) since reuniting with her in the Clockwork Droids' hideout wasn't of his doing. (TV: Deep Breath)

Habits and quirks
Much like his seventh incarnation, the Twelfth Doctor spoke with a Scottish accent, which he took as an entitlement to complain about things.

After working out the important questions in his head, he waited for others to come to the same conclusion, becoming increasingly annoyed with each wrong question they proposed.

Much like his predecessor, the Twelfth Doctor also used hand gestures to extenuate a point, but applied more dedication to his movements, standing firm, while speaking with conviction. (TV: Deep Breath)

Skills
Highly observant, the Doctor was able to point out the Half-Face Man as non-human from his lack of interest in a burnt dinosaur corpse, and later noticed that he and Clara were trapped in a room full of Clockwork Droids due to only them breathing.

The twelfth incarnation retained his predecessor's ability to understand other species, such as dinosaurs.

Strong and durable, the Doctor was able to support his own weight singlehanded, wrestle the half-face man into the corner and shook off a fall down a tree with relative ease, though the latter can be linked to him still being within the early hours of his regeneration. (TV: Deep Breath)

Appearance
The Twelfth Doctor's appearance differed greatly from his predecessor’s. While his previous incarnation had begun his life looking young, (TV: The End of Time) the Twelfth Doctor now appeared much older. He had short grey hair, a hooked nose and sharp silverly blue eyes, with big ears. (TV: The Time of the Doctor) He was of a light build. (COMIC: Chime Time) Clara was confused at the Twelfth's older appearance, saying to Vastra that "he [didn't] look renewed." (TV: Deep Breath)

Most changed were his eyebrows, which went from "delicate" (TV: The Time of the Doctor) to extremely thick and furrowed. (TV: The Day of the Doctor) Startled by the change, the Doctor described them as "attack eyebrows" which could "take bottle tops off". (TV: Deep Breath)

Clothing
He initially wore the Eleventh Doctor's clothes following regeneration, but later wore a coat that he "bought" from a tramp.

After having a chance to return to the TARDIS, the Doctor chose a new outfit for himself. He donned a navy blue cardigan with a white collared shirt with no tie, matching blue trousers that now covered his ankles instead of being too short, and black Dr. Martens-style brogue boots by Loake similar to the Ninth Doctor's sturdy Timberlands. Over the top, he sported a thigh length, dark blue Crombie jacket with red lining, often wearing it with the top button done. On his left hand ring finger, he had a pair of gold rings, a normal gold band and a second ring with an emerald gemstone that rested atop the first band. (TV: Deep Breath)

The Doctor would wear variations of his attire, switching out his cardigan for a buttoned waistcoat of the same colour. (TV: Into the Dalek)

Behind the scenes

 * Like the War and Ninth Doctors, the Twelfth Doctor debuted on television before his regeneration from his predecessor was screened.
 * His first words — "Kidneys! I've got new kidneys!" — keep to the modern tradition of new Doctors commenting on their bodies. Previously, the Ninth Doctor commented on his ears, (TV: Rose) the Tenth Doctor commented on his "new teeth", (TV: The Parting of the Ways) and the Eleventh on his legs. (TV: The End of Time)
 * His costume was revealed in DWM 470 and online.
 * Out of loving devotion to his wife, Peter Capaldi wanted to wear his wedding ring as part of his Doctor's attire and requested a prop to disguise it. He was given an emerald ring with a gemstone that fits over the top of his original band. The First Doctor also wore a gemstone ring, and as such the Twelfth Doctor is the first incarnation since then seen to sport one. He is also the first incarnation since the Third Doctor to wear an ordinary ring.

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