He played Ethan Rom on the television series Lost. In 2005, he played Donnie in Lords of Dogtown, and in 2004, he played Matthew Williams in The Grudge.
He was a high school teacher in East Los Angeles before becoming an actor.
He has appeared in multiple movies starring Tom Cruise, including Magnolia, Mission: Impossible II, Vanilla Sky, Minority Report, and Born on the Fourth of July.
His sister Amy is also an occasional actress.
He is the first cousin of superstar Tom Cruise.