Immortalized as Luke Skywalker in the original Star Wars trilogy, he received a Drama Desk Award nomination for his work in The Elephant Man. He also did voice acting work as the Joker in Batman, the animated TV series, from 1992 to 1995 and for a number of characters on the TV series Regular Show from 2009 to 2015.
Prior to a film career, he worked as a voice actor for the morning cartoon, Jeannie.
He appeared on the cover of a reprinted edition of Joseph Campbell's book, The Hero With a Thousand Faces, which influenced George Lucas.
He married Marilou Hamill in 1978. The couple had three children together, Chelsea, Nathan and Griffin.
He co-starred with