Brían F. O'Byrne
Known For
Acting
Gender
Male
Birthday
May 16, 1967 (59 years old)
Place of Birth
Mullagh, County Cavan, Ireland
Biography
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
| 2025 | Dead of WinterTall Hunter | |
| 2025 | The AbandonsWalter Paxton | |
| 2024 | TwigLeon | |
| 2024 | ConclaveO'Malley | |
| 2022 | The WonderJohn Flynn | |
| 2020 | SergioGil Loescher | |
| 2020 | My Salinger YearHugh | |
| 2020 | Lincoln Rhyme: Hunt for the Bone CollectorThe Bone Collector | |
| 2019 | Hatton GardenBasil | |
| 2018 | NightflyersAuggie | |
| 2017 | Little Boy BlueSteve Jones | |
| 2017 | ManhuntFrank McAlpine | |
| 2015 | Queen & CountryRSM Digby | |
| 2015 | AquariusKen Karn | |
| 2015 | Saints & StrangersJohn Billington | |
| 2015 | The Bastard ExecutionerBaron Ventris | |
| 2015 | The MagiciansMayakovsky | |
| 2014 | Jimmy's HallCommander O'Keefe | |
| 2014 | The Last ShipSean Ramsey | |
| 2013 | MedeasEnnis | |
| 2013 | Gilded LilysEdwin Lily | |
| 2011 | Mildred PierceBert Pierce | |
| 2011 | Prime SuspectReg Duffy | |
| 2010 | Brooklyn's FinestDet. Ronny Rosario | |
| 2010 | Love/HateInpector Mick Moynihan | |
| 2009 | The InternationalThe Consultant | |
| 2009 | FlashForwardAaron Stark | |
| 2007 | No ReservationsSean | |
| 2007 | Before the Devil Knows You're DeadBobby Lasorda | |
| 2007 | BugDr. Sweet | |
| 2007 | Alexander HamiltonAlexander Hamilton | |
| 2006 | BrotherhoodColin | |
| 2005 | The New WorldLewes | |
| 2004 | Million Dollar BabyFather Horvak | |
| 2004 | The Blackwater LightshipLarry | |
| 2003 | EasyMick McCabe | |
| 2003 | IntermissionMick | |
| 2001 | BanditsDarill Miller | |
| 2001 | Disco PigsGerry | |
| 2001 | The Grey ZoneInterrogator | |
| 2001 | MapmakerRichie Markey | |
| 2000 | An Everlasting PieceGeorge | |
| 1999 | Law & Order: Special Victims UnitLiam Connors | |
| 1998 | Amongst WomenLuke | |
| 1997 | The Last Bus HomeJessop | |
| 1997 | The Fifth ProvinceTimmy | |
| 1997 | OzPadraic Connelly | |
| 1993 | Avenue XSonny | |
| 1988 | American ExperienceAlexander Hamilton | |
| 1951 | Hallmark Hall of FameLarry | |
| - | One Sweet Hour | |
| - | SeahorseGeorge |














