Twice Upon a Time (Doctor Who) Twice Upon a Time (Doctor Who) "Twice Upon a Time" is an episode of the British science fiction television series "Doctor Who", written by Steven Moffat, directed by Rachel Talalay, and was broadcast as the thirteenth Christmas special on 25 December 2017 on BBC One. It features the final regular appearance of Peter Capaldi as the Twelfth Doctor, the first official appearance of Jodie Whittaker as the Thirteenth Doctor, and guest-stars David Bradley as the First Doctor, having previously portrayed original First Doctor actor William Hartnell in the 2013 docudrama "An Adventure in Space and Time". Pearl Mackie guest stars
The Doctor (Doctor Who) popularity led "The Daily Telegraph" to dub him "Britain's favourite alien". UGO Networks listed the Doctor as one of their best heroes of all time. The Doctor (Doctor Who) The Doctor is the title character in the long-running BBC science fiction television programme "Doctor Who". Since the show's inception in 1963, the character has been portrayed by thirteen lead actors. In the programme, "the Doctor" is the alias assumed by a centuries-old alien—a Time Lord from the planet Gallifrey—who travels through space and time in the TARDIS, frequently with companions. The transition to each succeeding actor is explained within the