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
Sharon (Doctor Who) Doctor created for the magazine, such as Frobisher, Izzy and Destrii. In the comic book "Incomplete Death's Head" #5, as part of the profile on "Doctor Who", her name was given as Sharon Davies. The accuracy of this information is not known. Sharon is due to make her audio debut in a Big Finish adaptation of her first story "Doctor Who and the Star Beast", opposite Tom Baker as the Doctor, in March 2019. She will be played by actress Rhianne Starbuck. Sharon (Doctor Who) Sharon (last name not given) is a fictional character who appeared in the "Doctor Who