Billie Paul Piper (born Lianne Piper, 22 September 1982, in Swindon, Wiltshire) is an English singer and actress.
She began her career in the late 1990s as a pop singer and then switched to acting. She started in acting and dancing and was talent spotted at the Sylvia Young stage school by Smash Hits magazine who wanted a “face” for their magazine. A recording contract was the route given to her. She later decided to retire from singing and refocus on her original ambition, acting. Her most famous role is as Rose Tyler, companion to the Doctor, in the television series Doctor Who from 2005 to 2006, a role she reprised in 2008 and 2010. In 2007, Broadcast magazine listed Piper at no. 6 in its “Hot 100″ list of influential on-screen performers. From 2007 until 2011, she starred as the high-flying escort Belle de Jour in the TV series Secret Diary of a Call Girl.