Sam Waterston: Sam Waterston. Actor: The Killing Fields. Sam Waterston was born on 15 November 1940 in Cambridge, Massachusetts, USA. He is an actor and producer, known for The Killing Fields (1984), The Great Gatsby (1974) and Law & Order (1990). He has been married to Lynn Louisa Woodruff since 26 January 1976. They have three children. He was previously married to Barbara Rutledge Johns.