Doctor Who (2013 specials) Doctor", saw the departure of Smith from the series and the introduction of Peter Capaldi as the Twelfth Doctor. "The Day of the Doctor" features the return of the Zygons for the first time since "Terror of the Zygons" in 1975. "The Time of the Doctor" draws together a number of plot threads that have run through the series since the Eleventh Doctor's first episode in 2010. <onlyinclude></onlyinclude> In "The Day of the Doctor", Smith and Coleman star alongside David Tennant and Billie Piper; Tennant reprised his role as the Tenth Doctor, while Piper, although credited as playing Rose Tyler,
Companion (Doctor Who) of the cloud on which the TARDIS was parked, plummeting to the ground. Another incarnation of Clara Oswald (named Oswin Oswald) dies in "Asylum of the Daleks"; the character disabling the planet's shielding thus enabling the Doctor, Amy Pond and Rory Williams to escape. Not all companion deaths have been permanent however. Jack Harkness resurrects after each death, having been made immortal by Rose Tyler in "The Parting of the Ways". Rory Williams suffered several deaths, each of which was negated by alternate timelines, paradoxes, resurrection by advanced alien medicine, or the rebooting of the universe. Clara Oswald dies in