Her grandparents were Irish.
Married her fiancé Kyle Baugher, a financier, in a private ceremony in Somerset, England. The couple had been in a relationship since 2010.
She was nominated for a 2004 Laurence Olivier Theatre Award for Best Actress of 2003 for her performance in "After Miss Julie" at the Donmar Warehouse. She became the youngest actress ever to be nominated for that category (aged 26).
She has twice worked with Rupert Penry-Jones, both times playing lovers. Once in Agatha Christie: Poirot (1989) episode, Agatha Christie: Poirot: Sad Cypress (2003), and then in Joe's Palace (2007).