- Best known for playing Cdr. John Crichton on Farscape (1999-2003) and Lt. Col. Cameron Mitchell on Stargate SG-1 (2005-07).
- Family owns and operates NASCAR race cars.
- Wanted to be an astronaut while growing up.
- Studied at the Central School of Speech and Drama in London.
- Played Leonardo in a 1989 London production of The Merchant of Venice that starred Dustin Hoffman; in 1990, the production moved to Broadway.
- Made his movie debut with a small part in 1990's Memphis Belle.
- Had a recurring role on Party of Five as Sam Brody during the 1996-97 season.
- Was originally cast to play football coach Red Raymond on the CW drama Hellcats in 2010, but dropped out so he could focus on films.