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,
Midnight (Doctor Who) Doctor tells her, "Molto bene", in relief. Donna copies him. Disturbed, the Doctor tells Donna not to do that, then looks away. Dee Dee tells the Doctor that she has written a paper on the lost moon of Poosh. The Doctor also mentions the Medusa Cascade, and Rose Tyler appears briefly on a television screen. These are all references to the series 4 story arc. Rose appears along with the missing planets, including Poosh, in the two-part season finale "The Stolen Earth"/"Journey's End". This episode is the fiftieth episode filmed for the revived series, and was filmed at the same