Sophie Cook (born 1974) is a British actress who is most notable for her role of Susan Pevensie in the Chronicles of Narnia BBC miniseries. She appeared in The Lion, the Witch and the Wardrobe in 1988 as well as Prince Caspian in 1989. Previously, she had played Sarah Jane Harvey in the ITV soap Crossroads and starred alongside Christian Bale in the miniseries Heart of the Country. She also appeared in the 1986 film "The Worst Witch", as Natalie Sinister, one of Mildred's classmates.