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
Doctor Who exhibitions to roam two floors of exhibitions including original costumes from ten of the twelve Doctors (the first two being replicas as the originals were lost). Alien prosthetics, Daleks and Cybermen over history, Sonic devices, the TARDIS interiors belonging to the First Doctor, Fourth Doctor, Fifth Doctor, and the Ninth Doctor and Tenth Doctor and presented. Many other show memorabilia and artefacts were also on display, including costumes from the companions since 2005 including: Rose Tyler, Martha Jones, Donna Noble, Captain Jack Harkness, Amy Pond and Rory Williams. Each year since opening, costumes and props used from new series were been