About
Brían Francis O'Byrne (born 16 May 1967) is an Irish actor who works mostly in the United States. He was born in Mullagh, County Cavan. O'Byrne first attracted notice for his performances in the Martin McDonagh plays The Beauty Queen of Leenane (1996) as Pato Dooley (for which he received a Tony Award nomination for Best Featured Actor in a Play) and The Lonesome West (1997). He is known for taking on serious and dramatic roles, such as a serial killer in Frozen (1998) (for which he won a Tony Award) and a priest accused of child molestation in Doubt (2004), for which he received a Tony nomination. O'Byrne also appeared as a priest in the 2004 film Million Dollar Baby. In May 2007, O'Byrne was nominated for a Tony Award for his performance as Alexander Herzen in Tom Stoppard's 2002 trilogy The Coast of Utopia. In 2011, he was nominated for the Primetime Emmy Award for Outstanding...
Known for
Law & Order: Special Victims UnitSeries • 1999
American ExperienceSeries • 1988
The Last ShipSeries • 2014
OzSeries • 1997
The MagiciansSeries • 2015
ConclaveMovie • 2024
ManhuntSeries • 2017
The InternationalMovie • 2009
FlashForwardSeries • 2009
TaskSeries • 2025
Brooklyn's FinestMovie • 2010
Love/HateSeries • 2010
Million Dollar BabyMovie • 2004
PrisonerSeries • 2026
BrotherhoodSeries • 2006
Mildred PierceSeries • 2011
Lincoln Rhyme: Hunt for the Bone CollectorSeries • 2020
The AbandonsSeries • 2025
AquariusSeries • 2015
NightflyersSeries • 2018
Dead of WinterMovie • 2025
Before the Devil Knows You're DeadMovie • 2007
Season of the WitchMovie • 2011
No ReservationsMovie • 2007