Brían F. O'Byrne
Acting
1967-05-16 · Mullagh, County Cavan, Ireland
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.
Filmography
TheatersOne Sweet Hour
2026 · Movie
Prisoner
2026 · Series
The Abandons
2025 · Series
Dead of Winter
2025 · Movie
Task
2025 · Series
Conclave
2024 · Movie
Twig
2024 · Movie
The Wonder
2022 · Movie
My Salinger Year
2020 · Movie
Sergio
2020 · Movie
Lincoln Rhyme: Hunt for the Bone Collector
2020 · Series
Hatton Garden
2019 · Series
Nightflyers
2018 · Series
Manhunt
2017 · Series
Little Boy Blue
2017 · Series
The Magicians
2015 · Series
Saints & Strangers
2015 · Series
The Bastard Executioner
2015 · Series
Aquarius
2015 · Series
Queen & Country
2015 · Movie
The Last Ship
2014 · Series
Jimmy's Hall
2014 · Movie
Medeas
2013 · Movie
Gilded Lilys
2013 · Movie
Prime Suspect
2011 · Series
Mildred Pierce
2011 · Series
Season of the Witch
2011 · Movie
Love/Hate
2010 · Series
Brooklyn's Finest
2010 · Movie
FlashForward
2009 · Series
The International
2009 · Movie
Before the Devil Knows You're Dead
2007 · Movie
No Reservations
2007 · Movie
Alexander Hamilton
2007 · Movie
Bug
2007 · Movie
Brotherhood
2006 · Series
The New World
2005 · Movie
Million Dollar Baby
2004 · Movie
The Blackwater Lightship
2004 · Movie
Easy
2003 · Movie
Intermission
2003 · Movie
Mapmaker
2001 · Movie
Bandits
2001 · Movie
Disco Pigs
2001 · Movie
The Grey Zone
2001 · Movie
An Everlasting Piece
2000 · Movie
Law & Order: Special Victims Unit
1999 · Series
Amongst Women
1998 · Series
The Fifth Province
1997 · Movie
The Last Bus Home
1997 · Movie
Oz
1997 · Series
Avenue X
1993 · Movie
American Experience
1988 · Series
Hallmark Hall of Fame
1951 · Series
Seahorse
Movie