Mireille Enos is an American actress best known for her role as Sarah Linden in the AMC crime drama series The Killing and as Kathy Saville in the HBO drama series Big Love. She is also known for her roles in films such as World War Z, Gangster Squad, and If I Stay. Enos has been nominated for several awards, including a Primetime Emmy Award for Outstanding Lead Actress in a Drama Series for her performance in The Killing.