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: Thirty Years in the TARDIS programme's fiftieth anniversary in 2013, when the one-off special "An Adventure in Space and Time" was broadcast on BBC Two. Doctor Who: Thirty Years in the TARDIS Doctor Who: Thirty Years in the TARDIS is a one-off, 50-minute television documentary, broadcast to celebrate the thirtieth anniversary of the science-fiction series "Doctor Who". It was originally transmitted on Monday 29 November 1993, on BBC One (BBC Two in Scotland). The programme was the first BBC-produced, in-depth documentary chronicling "Doctor Who" since the earlier "Whose Doctor Who" was broadcast in April 1977, although a thirty-minute, categorized compilation of archive clips had been