Billie Paul Piper (born Lianne Paul Piper[1] on 22 September 1982) is an English singer and actress.

She began her career as a pop singer when she was a teenager but is now best known for portraying Rose Tyler, companion to the Doctor in the television series Doctor Who from 2005 to 2006, a role she reprised in 2008.[2] In 2007, Broadcast magazine listed Piper at #6 in its "Hot 100" list of influential on-screen performers, the top woman on the list.[3][4] She has also portrayed the prostitute Belle de Jour in Secret Diary of a Call Girl.