Russell T Davies says he never thought the show would still be going 20 years on from its reboot.

Doctor Who showrunner Russell T Davies has said that Swindon-born Billie Piper was the “secret weapon” to the show's revival. It’s A Sin creator Davies, 61, rebooted the popular sci-fi show in 2005 ...

He said his "secret weapon" was actress Billie Piper, who played the Doctor's companion - Rose Tyler. Piper, 42, starred alongside Christopher Eccleston for one series, which began on 26 March ...