Romola Sadie Garai (/ˈrɒmələ ˈseɪdi ˈɡæri/; born 6 August 1982) is an English actress. She is known for appearing in the films Amazing Grace, Atonement, and Glorious 39, and in BBC series such as Emma, The Hour, and The Crimson Petal and the White. She has been nominated twice for the Golden Globe Award.