O'Malley's first break came as the host of Nickelodeon children's game shows Get the Picture and Nickelodeon GUTS.
O'Malley made his movie debut in Deep Impact, playing Elijah Wood’s astronomy teacher. He followed that up with a supporting role in the John Cusack/Billy Bob Thornton film about air traffic controllers called Pushing Tin. His best known film role is probably that of Oliver, the cocaine-addict, in the Sandra Bullock rehab film 28 Days. In 2005, O'Malley starred in the Heather Locklear/Hilary Duff film The Perfect Man. The movie opened to negative reviews. In 2007, he filmed supporting roles in the George Clooney film Leatherheads, and the Eddie Murphy film Meet Dave.
O'Malley is also an accomplished playwright. Two of his plays, Three Years from Thirty and Diverting Devotion, have been published and produced Off-Broadway. Searching for Certainty, a third play, was produced in Los Angeles in 2003.
O'Malley was born in Boston, Massachusetts, and raised in New Hampshire, the son of Marianne, a career counselor, and Tony O'Malley, an executive for the defense industry.
He is married with three children.
- Meet Dave (2008)
- Leatherheads (2008)
- On Broadway (2007)
- 28 Days (2000)
- Pushing Tin (1999)
- Deep Impact (1998)
Selected television appearancesEdit
- My Own Worst Enemy (2008)
- Pretty/Handsome (2008)
- Yes, Dear (2000)
- Law & Order (1991)
- Glee (2009)