Billie Piper ( born Leian Paul Piper ; 22 September 1982 ) is a British stage and television actress and former singer . She is best known for her roles as Rose Tyler in Doctor Who , Hannah Baxter in The Secret Diary of a Call Girl and Lily Frankenstein in Penny Dreadful . In 2007, British magazine Broadcast ranked Piper sixth in its list of the 100 most influential actors. Among women, she took first place. In 2017, the actress won the prestigious Laurence Olivier Theatre Award for Best Actress for her performance in the play Yerma, based on the tragedy by the Spanish poet Federico García Lorca. Read More