Twice Upon a Time (Doctor Who) The Doctor paraphrases philosopher Bertrand Russell when he advises his future self that "hate is always foolish and love is always wise". Peter Capaldi reprised his role as the Twelfth Doctor. On 30 January 2017, he confirmed that the tenth series would be his last, and that he was set to leave after the 2017 Christmas special. The episode also sees the introduction of Jodie Whittaker as the Thirteenth Doctor, whose casting was announced on 16 July 2017. David Bradley appears in the episode as the First Doctor, having previously portrayed William Hartnell in the docudrama "An Adventure in Space
Peter Brachacki were obviously the same sets as were used for the Doctor's TARDIS, slightly redressed. The TARDIS interior was completely redesigned again for the 1996 "Doctor Who" TV movie, and the new series that began broadcasting in 2005. Even then the central console was retained, and the new television series includes the geometric patterns on the walls. In 2013 the BBC produced a docudrama called "An Adventure in Space and Time", depicting the creation and early days of "Doctor Who", as part of the programme's fiftieth anniversary celebrations. Brachacki appears as a character in the drama, played by actor David Annen.