(Born Jan. 28, 1945) Marthe Keller is a Swiss actress. She appeared in a series of French films in the 1970s. Her most famous American film appearances are her Golden Globe-nominated performance as Dustin Hoffman's girlfriend in Marathon Man and her performance as an Arab terrorist who leads an attack on the Super Bowl in Black Sunday. Since then, Keller has worked more steadily in European cinema compared to American movies.