Sasha was born in Hong Kong to English parents. She majored in French and Creative Writing at the University of Michigan and then attended the American Academy of Dramatic Arts in New York. She has performed on the West End, at the Geffen, and off Broadway. She has starred in numerous independent films, on TV in Days of Our Lives, as well as voiced the role of Miranda in The Tempest for BBC Radio 4. Narration work includes books for Dreamscape, Tantor, Blackstone, Highbridge, and Penguin Randomhouse.