|Born||January 19, 1984|
|Birthplace||Newport Beach, CA|
|Episode||Moving the Chains|
Trever O'Brien is an American actor. On House, M.D., he portrayed clinic patient Jim Dunnagan in the Season 6 episode Moving the Chains.
- Appeared with Becky O'Donohue on Lying for a Living
- Appeared with Olivia Wilde in In Time
- Appeared with Lyndsy Fonseca, Carla Gallo and Jennifer Morrison in Five