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
An Adventure in Space and Time Who" in 1993, filmmaker Kevin Davies pitched an idea called "The Legend Begins" to the BBC. "The Legend Begins" would have mixed documentary interviews with those responsible for the creation of "Doctor Who" with a dramatised strand showing the programme's beginnings. Eventually, the dramatisation idea was abandoned in favour of a standard documentary format looking at the entire history of "Doctor Who", which was eventually broadcast on BBC1 as "" in November 1993. Ten years later, for the fortieth anniversary, writer and executive producer Mark Gatiss pitched the idea for the film to BBC Four, unaware of Davies's previous attempt.