The Twelfth Doctor is a Time Lord.
The Time Lords are a fictional , ancient extraterrestrial people in the British science fiction television series Doctor Who , of which the series ' protagonist , the Doctor , is a member . The Twelfth Doctor is an incarnation of the Doctor , the protagonist of the BBC science fiction television programme Doctor Who . Within the series ' narrative , the Doctor is a time travelling , humanoid alien from a race known as the Time Lords .