American actor and comedian best known for his role as crazy neighbor Kramer on the popular television series, Seinfeld. He appeared as himself in the seventh season of Curb Your Enthusiasm.
He spent a few years in the Santa Cruz mountains living in a commune before he started acting.
After an incident about racist remarks at the Laugh Factory, he decided to travel to Cambodia for spiritual research.
He was married to Cathleen Lyons from 1974-1992. He married Beth Skipp in 2007. He has two children, Antonio and Sophia.
He co-starred in Seinfeld with Jerry Seinfeld.