Doctor Who Doctor's nature, somewhere between the twelfth and final incarnation. On rare occasions, other actors have stood in for the lead. In "The Five Doctors", Richard Hurndall played the First Doctor due to William Hartnell's death in 1975; 34 years later David Bradley similarly replaced Hartnell in "Twice Upon a Time". In "Time and the Rani", Sylvester McCoy briefly played the Sixth Doctor during the regeneration sequence, carrying on as the Seventh. For more information, see the list of actors who have played the Doctor. In other media, the Doctor has been played by various other actors, including Peter Cushing in
Space and Time (Doctor Who) TARDIS dematerialises while the outer TARDIS (being the same TARDIS) does the same, and the Doctor assures Amy and Rory that they are now back in "normal flight", and then advises Amy to "put some trousers on". "Doctor Who" had previously aired two related specials for Comic Relief. The first was the 1999 spoof "The Curse of Fatal Death", which was also written by Steven Moffat. The spin-off series "The Sarah Jane Adventures" produced its own mini-episode "From Raxacoricofallapatorius with Love" for the 2009 Comic Relief appeal. Unlike "The Curse of Fatal Death", "Space" and "Time" are considered to be