Turn Left (Doctor Who) Turn Left (Doctor Who) "Turn Left" is the eleventh episode of the fourth series of British science fiction television series "Doctor Who". It was written by showrunner Russell T Davies and broadcast on BBC One on 21 June 2008. David Tennant only makes a small contribution to this "Doctor-lite" episode as the Tenth Doctor. The story instead focuses on the Doctor's companion, Donna Noble (Catherine Tate) and her encounters with former companion Rose Tyler (Billie Piper). The episode's narrative focuses on an alternative history where the Doctor dies during the events of the 2006 Christmas special "The Runaway Bride". The
Rose (Doctor Who episode) (Christopher Eccleston) plot to prevent an invasion of the Earth by the Nestene Consciousness (voice of Nicholas Briggs) and the Autons after the Doctor destroys Rose's workplace. The episode marked Eccleston's first appearance as the Doctor, succeeding several other actors who played the role, and Piper's debut as the Doctor's travelling companion Rose. Being the first episode of the revived series, several recurring characters were introduced: Camille Coduri as Jackie Tyler, and Noel Clarke as Mickey Smith. Viewers did not see the Doctor character regenerate from a previous incarnation, regeneration being a plot device in which the character of the