Sarah Niles is a British film, television and theatre actress. Niles has appeared mainly in theatre productions including the National and Royal Court, however she is most famous for portraying Reba Parkinson in the BBC television series Beautiful People. Niles has also had roles in various high-profile television shows such as Doctor Who, where she played Node 1 in "Silence in the Library", Being Human and Waterloo Road. Additionally, Niles had a role in the 2008 film Happy-Go-Lucky, directed by Mike Leigh. She has also been seen in London Boulevard and Austenland In 2014, she appeared as Sylvaine Dor in Death in Paradise episode 3.8 She is currently playing Tituba in The Crucible at the Old Vic Theatre.