An American actor, born in 1945 in Rahway, New Jersey, he gained fame in the 1970s. He served in the U.S. Navy and studied at the Actor's Studio. His breakout role came in "American Graffiti" (1973), earning a Golden Globe for New Star of the Year. Known for portraying sensitive, rebellious characters, he starred in films like "Melvin and Howard" (1980), winning another Golden Globe. His career includes notable TV roles, maintaining a presence in Hollywood into the 2000s.