- Birth name was Leian, but her parents legally changed it to Billie less than a year after she was born.
- First acting gig was on the British Saturday morning kids' show Scratchy and Co.
- Studied acting at London's Sylvia Young Theatre School, where her classmates included pop-soul singer Amy Winehouse.
- Was an extra in the big-screen musical Evita (1996), giving her the chance to act alongside her idol, Madonna.
- At the age of 15, her hit song "Because We Want To" debuted at No. 1 on the UK singles chart, making her the youngest solo artist ever to accomplish the feat.
- Earned acclaim playing sidekick Rose Tyler on the BBC's 2005 resurrection of sci-fi series Doctor Who.
- Released an album of her greatest hits, titled Billie: The Singles Collection, in 2012.
- 2013, Olivier Awards — Best Actress: Nominee
- Chris Evans — Ex-husband
- Harley Piper — Sister
- Norman George Victor Piper — Grandfather
- Eugene Pip Fox — Son
- Mandy Piper — Mother
- Winston James Fox — Son
- Laurence Fox — Husband
- Paul Piper — Father
- Sarah Jane Berry — Grandmother
- Charlie Piper — Brother
- Ellie Piper — Sister
Season 2, Episode 3
- Birth Name: Leian Paul Piper
- Birth Place: Swindon, Wiltshire, England
- Birthday: September 22, 1982, Virgo
- Profession: Actor, Singer
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