Twelfth Doctor

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### Cause of Regeneration

Heavily irradiated after saving Bernice Summerfield and Anders Hausner from a radon chamber.

## Behind the Scenes

### Secondary Actors/Actresses

N/A

Unlike both of his predecessors, the **Twelfth Doctor** was far more optimistic and calm. Filled with an unwavering lust for adventure, he revelled in the idea of travelling in the fourth dimension, coming across to anybody as rather excitable and childish, yet still calm and collected. However, he could change this mood in an instant to a serious thinker, a master manipulator who could and would put all niceties behind him in order to get the job done. He was kind and caring, but would not pander, lest it got him through an obstacle.

He started his time in the TARDIS with his former self's final companion, and under him, their friendship grew exponentially, flitting into perceived romance more and more often. Unlike most doctors, and much to Emma's chagrin, the Twelfth Doctor was not in the habit of trying to blend in and use aliases, using them fleetingly and only when no other option was available, instead choosing to flaunt his Gallifreyan heritage almost to the point where he was put to death by the Time Lords, much like his second incarnation. He was also possibly more efficient in fighting off alien threats, ascertaining their weaknesses and using these weaknesses against any alien that came across him. As such, it was unusual for any foe of his to face him more than once. Even the Cybermen stayed well out of his way after their first run-in.

The Twelfth Doctor also took pride in acting like an older brother to his companions, frequently joking with them and becoming friends not only on a personal level but to the point that with the exception of Emma, who tearfully left him behind on 21st-Century Earth, all the companions he had not met before opted to stay with him without any hesitation. He also regained three old faces: Bernice Summerfield, who had opted to see more of the universe after leaving U.N.I.T., Anders Hausner and Romana, who had regenerated into a new incarnation. He was always there to look out for those he cared about, and so it comes as little surprise that he gave up this incarnation to save both Bernice and Anders from a radon chamber, taking the heavy irradiation for them.

## Appearances

### Season 42

* Pompeii!
* The Light Beyond
* House of Horrors
* Death Comes A-Knocking
* Lords of Heorot
* Notian
* Breaking the Silence
* Closet of Skulls

### Season 43

* Tooth and Claw
* Return to the Sensorites
* Fracture
* Vincent and the Doctor
* Elements of the Earth
* The World of Mirrors
* The War to End All Wars
* Time Crash

### Season 44

* Golden Promises
* Life's Beginnings
* Ripper's Blade
* Pipe Dreams
* Friends and Enemies
* The Newest Universe
* The Sontaran Stratagem
* Troubled Water

### Season 45

* The Silence in the Library
* Year of the Dalek
* Mechanisms for Murder
* 42
* Nothing But the Truth
* Lords of Fantasy
* Checkmate
* Veil of the Past
* The Waters of Mars

### Season 46

* An Unlawful Execution
* The Dwarf Planet
* Universal Truths
* Return of the Autons
* Treachery of the TARDIS
* Rise of the Master

### Season 57

* *Trust Me On This!*