Doctor Who (series 4) Astrid Peth, who died during the events of the episode. The companions in the regular series had all been in the lead companion role previously: the primary role of Donna Noble, who was introduced in "The Runaway Bride", was played by Catherine Tate for all thirteen episodes. Her return was announced by the BBC on 3 July 2007. Freema Agyeman, who portrayed the Doctor's companion Martha Jones in series three, returned for "The Sontaran Stratagem", "The Poison Sky", "The Doctor's Daughter", "The Stolen Earth" and "Journey's End". Billie Piper, who played Rose Tyler from the first episode of the new
Rose (Doctor Who episode) blames the Doctor for the destruction of its planet during the Time War. The Consciousness activates all the Autons at a shopping arcade, where several shoppers are shot and killed, including Clive. The Doctor is also held down by a pair of Autons, but Rose rescues him and the anti-plastic drops into the vat where the Nestene Consciousness resides, killing it. With the Consciousness dead, the Autons all collapse. The Doctor uses the TARDIS to take Mickey and Rose home, then persuades Rose to join him as his new companion in the TARDIS. Both the Autons and the Nestene Consciousness