Brían F. O'Byrne
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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 Supporting Actor in a Miniseries or a Movie for his performance in Mildred Pierce as Bert Pierce.
Known for
Credits
Conclave (2024)
as O'Malley
Million Dollar Baby (2004)
as Father Horvak
Season of the Witch (2011)
as Grandmaster (uncredited)
Dead of Winter (2025)
as Tall Hunter
No Reservations (2007)
as Sean
The International (2009)
as The Consultant
Before the Devil Knows You're Dead (2007)
as Bobby Lasorda
Bandits (2001)
as Darill Miller
Brooklyn's Finest (2010)
as Det. Ronny Rosario
The New World (2005)
as Lewes
The Wonder (2022)
as John Flynn
The Grey Zone (2001)
as Interrogator
My Salinger Year (2020)
as Hugh
Bug (2007)
as Dr. Sweet
Intermission (2003)
as Mick
Sergio (2020)
as Gil Loescher
Queen & Country (2015)
as RSM Digby
Avenue X (1993)
as Sonny
Jimmy's Hall (2014)
as Commander O'Keefe
Disco Pigs (2001)
as Gerry
Medeas (2013)
as Ennis
Seahorse (—)
as George
Gilded Lilys (2013)
as Edwin Lily
An Everlasting Piece (2000)
as George
The Blackwater Lightship (2004)
as Larry
Easy (2003)
as Mick McCabe
Mapmaker (2001)
as Richie Markey
One Sweet Hour (—)
as Colum Byrne
The Last Bus Home (1997)
as Jessop
Alexander Hamilton (2007)
as Alexander Hamilton
The Fifth Province (1997)
as Timmy
Twig (2024)
as Leon