The Doctor (Doctor Who)
The Doctor is the title character in the long-running BBC science fiction television programme "Doctor Who". Since the show's inception in 1963, the character has been portrayed by thirteen lead actors. In the programme, "the Doctor" is the alias assumed by a centuries-old alien—a Time Lord from the planet Gallifrey—who travels through space and time in the TARDIS, frequently with companions. The transition to each succeeding actor is explained within the show's narrative through the plot device of "regeneration", a biological function of the Time Lord race that allows a change of cellular structure and appearance with recovery following a potentially fatal injury.
Doctor Who (series 5)
In the BBC Books "Doctor Who" New Series Adventures line (a series of spin-off novels which began in 2005 with the Ninth Doctor and the revival of the television series), six novels were published corresponding to the series. On 22 April 2010, the first three ("Apollo 23" by Justin Richards, "Night of the Humans" by David Llewellyn, and "The Forgotten Army" by Brian Minchin) were published with the Eleventh Doctor and Amy. On 8 July 2010, three more novels were published: "Nuclear Time" by Oli Smith, "The Glamour Chase" by Gary Russell and "The King's Dragon" by Una McCormack, with the Doctor, Amy and Rory.