Lena Headey is an English actress best known for her roles as Cersei Lannister in the HBO series Game of Thrones and Sarah Connor in the Fox series Terminator: The Sarah Connor Chronicles. She has also appeared in films such as The Brothers Grimm, 300, and Dredd. Headey has been nominated for several awards, including a Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series and a Golden Globe Award for Best Supporting Actress.