Actor and director who became known worldwide for his performance in The Boondock Saints and The Boondock Saints II: All Saints Day. He gained further recognition for his role as Daryl Dixon in the horror TV series The Walking Dead.
He was briefly employed at a Harley Davidson shop while producing artwork as a painter, photographer, sculptor, and video artist. He made his debut in the 1997 film Mimic.
He played Lewis Payne in Robert Redford's 2011 film The Conspirator, which was about the Lincoln assassination.
He was in a relationship with supermodel Helena Christensen from 1998 to 2003. They had a son named Mingus Lucien together in 1999. He'd later begin a relationship with actress Diane Kruger, with whom he had a child in 2018.
He appeared in the Pilot episode of the TV show Hawaii Five-0, which starred Scott Caan.