10 Longest Gaps Between Doctor Who Character Appearances
9. The Movellans (13,721 Days)
In one of those crazy rolls of the dice that only an exiting Doctor Who showrunner would attempt, the Movellans made a brief cameo at the start of Peter Capaldi and Steven Moffat's final series.
Making one appearance in Terry Nation's unloved final Dalek story, Destiny of the Daleks, the logical androids were pitched as the Daleks' greatest enemies. Not due to their strength, but due to the stalemate that was caused by the immovable forces of logic and hatred.
They never appeared again, and probably never would have if it weren't for a mischievous aside from Mark Gatiss. Reading the script for The Pilot, Gatiss observed that the Doctor, Bill, and Nardole should arrive during a Dalek skirmish with the Movellans - just for the sheer hell of it. It was a fun reference that gave fans a laugh, without alienating the casual viewer.
Destiny of the Daleks concluded on 22 September 1979, leaving an almost 38-year gap before their cameo appearance in The Pilot on 15 April 2017.