Sarah grew up in Bury St. Edmunds. Most recently she has been playing receptionist Valerie Pitman in BBC Doctors. Other television includes: The Sister Boniface Mysteries, Emmerdale, Extras, Born and Bred, Ultimate Force, City Lights, Mount Pleasant, WPC 56, White Van Man, Threesome, Candy Cabs, Roger Roger.

Theatre includes: Women on the Verge of a Nervous Breakdown (Playhouse Theatre) Jerusalem (Royal Court, Apollo and Music Box Theatre Broadway) She Stoops to Conquer (National Theatre) Drowning on Dry Land, Private Fears in Public Places, A Chorus of Disapproval (all written and directed by Alan Ayckbourn at The Stephen Joseph Theatre, The Orange Tree Theatre and 59E59 Theatre New York) Wind in the Willows and A Christmas Carol (West Yorkshire Playhouse) The Prime of Miss Jean Brodie (Royal and Derngate Theatre) My Fair Lady (National Theatre and Drury Lane) Daddy Cool (Shaftesbury Theatre) Les Miserables (Palace Theatre) Oliver (London Palladium) An Inspector Calls (Aldwych Theatre)

Film includes: The Gunman

In 2019 Sarah won the British Soap Award for Best Comedy Performance She is the patron of the charity Embracing Arts.