William Devane (born September 5, 1937) is an American film and television actor.
He was born in Albany, New York, the son of Joseph (Joe) Devane, who was President Franklin D. Roosevelt's chauffeur when he was Governor of New York. Devane graduated from the American Academy of Dramatic Arts in New York.
Devane got his feet wet playing a member of the Kennedy clan, as Robert Kennedy in the Off-Broadway spoof MacBird in 1966. He became widely known for his ten years as the villainous Greg Sumner on the drama series Knots Landing, and his role as President Kennedy in the TV film The Missiles of October, about the Cuban Missile Crisis. He appeared in the films McCabe & Mrs. Miller (1971), Family Plot (1976), Marathon Man (1976), Rolling Thunder (1977), The Bad News Bears in Breaking Training (1977), Testament (1983), Forgotten Sins (1996), Payback (1999), and Space Cowboys (2000).
Devane has played members of the United States Cabinet on two different evening dramas. In 2