Fugitive Doctor

The Fugitive Doctor is an incarnation of the Doctor, the protagonist of the British science fiction television series Doctor Who. She is portrayed by the English actress Jo Martin, the first person of colour to play the role.

Within the programme's narrative, the Doctor is a Time Lord, from the planet Gallifrey. The Doctor travels in a time-travelling space ship, the TARDIS. Possessing alien physiology, the Doctor, when critically injured, can regenerate into a new body, gaining a new physical appearance and personality. This plot device has allowed a number of actors, both male and female, to portray the Doctor through the decades. Each actor to play the Doctor offers a different take on the Doctor's essential personality.

It was initially unknown where this incarnation, who is encountered during the Thirteenth Doctor's (Jodie Whittaker) era, fit within the show's fictional chronology, although many commenters speculated that she was from the Doctor's past, prior to the First Doctor. It was confirmed so in "Once, Upon Time" (2021) from a period that was erased from the Doctor's memory, along with multiple other incarnations. The Thirteenth Doctor first encounters her on Earth, where she had hidden herself from the Time Lords, for whom she had been compelled to work as part of the mysterious "Division".

The Fugitive Doctor is the darkest incarnation of the character, with an acerbic tongue and a short temper. She is a battle-hardened figure who does not suffer fools gladly, with an authoritative and composed demeanour who will happily use weapons specifically her sonic gun rather than the sonic screwdriver that she later uses when shes developed a conscience in future regenerations.