Siobhán is an award-wnning actor on stage and screen, and is also a screenwriter.

As well as acting, writing and producing, she's raised millions for The Royal Marsden Cancer Hospital where she is celebrity ambassador and is also a passionate activist to stop the release of raw sewage into our seas, oceans and rivers.

Siobhán’s award nominee said: “Siobhán deserves to win an alumnae award because she has the spirit of the Downe House girl in her life - using her fierce intelligence for the greater good as an award-winning actress on stage & screen and recently screenwriter."