His big break came with a 1973 television adaptation of Tennessee Williams's "The Glass Menagerie" and the film version of The Great Gatsby (1974) with Mia Farrow. That pairing led to a subsequent string of Woody Allen films -- Interiors (1978), Hannah and Her Sisters (1986) and Crimes and Misdemeanors (1989) -- and an Oscar nomination for The Killing Fields (1984).
Despite his impressive film résumé, Waterston is perhaps best known for his Emmy-nominated portrayal of District Attorney Jack McCoy on the long-running detective drama "Law & Order." He continues to perform in both live theater and film, donning a beard more than once to play Abraham Lincoln.