Sam Waterston
Samuel Atkinson "Sam" Waterston (born November 15, 1940) is an American actor, producer, and director. He is best known for playing Executive Assistant District Attorney Jack McCoy in Law & Order, and also for playing Sydney Schanberg in the 1984 movie The Killing Fields. He won a Screen Actors Guild Award for his work on Law & Order. He has also been nominated for an Emmy Award and a Golden Globe Award for that show. He has won other awards, too. He has also been nominated for a lot of awards.