The Doctor Falls the episode, the Doctor (Peter Capaldi) must save himself and the remaining human population of a gigantic colony ship from Mondas, while also dealing with two different incarnations of the Master (Michelle Gomez and John Simm) at once. The episode features a cameo from the First Doctor, now portrayed by David Bradley. He had previously played William Hartnell, the original First Doctor actor, in the 2013 "Doctor Who" docudrama "An Adventure in Space and Time". Aboard the colony ship reversing from the event horizon of a black hole, the Doctor finds Bill has been converted into a Cyberman. The Master
Doctor Who (2013 specials) omnibus edition of a serial of each Doctor. "Watch" is broadcasting two episodes per weekend, starting on 12 October. The British Film Institute ran a year long celebration of the 50th anniversary with monthly screenings of stories from each Doctor, culminating in November with screenings of both "The Day of the Doctor" and "An Adventure in Space and Time". BBC Radio 2 broadcast a number of new programmes commemorating the show, including a 90-minute documentary called "Who is the Doctor?"; "The Blagger's Guide to Doctor Who" hosted by David Quantick and Graham Norton's live Saturday show was broadcast from the