Actor. He is best remembered for his role of Sergeant Major Dickerson in "Good Morning, Vietnam" (1987) and for his role of Big Bob in "Pleasantville" (1998). Born James Thomas Patrick Walsh in San Francisco, California to parents of Irish descent, he attended a Jesuit boarding school in Ireland. After returning from studying at Clongowes Wood College in Ireland, he attended the University of Rhode Island where he starred in many college theater productions. He was also President of the local chapter of the Students for a Democratic Society (SDS), an anti-Vietnam War radical student movement of the 1960s. Upon graduation, he worked at a series of odd jobs including: social worker, encyclopedia salesman, junior high school teacher, reporter, and bartender. In 1974, he was discovered working in Off-Broadway shows, and offered a chance to go to Hollywood. He intended to use his own initials as his stage name, but during a casting call, his name was mistyped as J.T. and he decided to stay with that instead of J.P. His first movie role came in 1983, with his minor role of the man in the bar scene in "Eddy Macon's Run." After that, he was offered feature film roles, often playing the bad guy. He often played white-collar bad guys in such films as: "Power" (1986), "Hannah and Her Sisters" (1986), "Tin Men" (1987), "Good Morning, Vietnam" (1987), "The Big Picture" (1989), "The Grifters" (1990), "Backdraft" (1991), "Sling Blade" (1996) and "Breakdown" (1997) opposite Kurt Russell. He played Union leader Frank Fitzsimmons in "Hoffa" (1992), a U.S. Marine officer who discovers he has a conscience in "A Few Good Men" (1992), White House Domestic Affairs Advisor John Ehrlichman in "Nixon" (1995) and an uncredited role as the White House Chief of Staff in "Outbreak" (1995). Before his death, he had hoped to play more complicated and substantial character roles, rather than the cowards and bullies that he had been typecast in. In his last year, he starred in three movies, "Hidden Agenda" (1998), "The Negotiator" (1998) and "Pleasantville" (1998), but it was his last movie for which he is most often remembered. Jack Nicholson dedicated his Best Actor Oscar Award in March 1998 for "As Good As It Gets" (1997) to Walsh. Walsh died of a heart attack in La Mesa, California, on February 27, 1998. He was 54.