Brian O'Byrne


Date Of Birth

May 16, 1967


Brian O'Byrne is an Irish actor who has found fame and success in Hollywood. On the small screen, he is noted for his roles on Oz, Brotherhood where he played Colin, Flashforward as Aaron Stark and as Bert Pierce on the HBO series Mildred Pierce. At present, he is part of the cast of Prime Suspect as Det. Reg Duffy.

O'Byrne's movie credits include Brooklyn's Finest, Before the Devil Knows You're Dead, No Reservations, Million Dollar Baby, and The Grey Zone.

Place of Birth

Mullagh, County Cavan, Ireland

Birth Name

Brian O'Byrne



Fun Facts



2007: Gotham Award for Best Ensemble - Before the Devil Knows You're Dead


2011 Mildred Pierce (TV mini-series)
2011 Prime Suspect
2011 Season of the Witch
2010 Medium (TV series)
2009-2010 FlashForward (TV series)
2009/I The International
2009 Brooklyn's Finest
2007-2008 Brotherhood (TV series)
2007 Before the Devil Knows You're Dead
2007 No Reservations
2007 The American Experience (TV series documentary)
2006 Bug
2005 The New World
2005 In an Instant
2005 Law & Order: Special Victims Unit (TV series)
2004 Million Dollar Baby
2004 The Blackwater Lightship (TV movie)
2003 Easy
2003 Intermission
2001 Mapmaker
2001 Bandits
2001 Disco Pigs
2001 The Grey Zone
2001 Oz (TV series)
2000 An Everlasting Piece
1998 Amongst Women (TV mini-series)
1997 The Fifth Province
1997 The Last Bus Home
1997/I Electricity (short)
1994 Avenue X (short)
1986 Valerie's Family (TV series)
1976 Joe Forrester (TV series)




6' 2" (1.88 m)


"I'm not sure if a grinning Irish guy who's speechless for 45 seconds is going to make good TV, but it might be just what you get. There are no such things, I believe, as competition between actors. You can't really award any of us. What we try to do is be good. The nomination hopefully means that we're good."

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