
Brían F. O'Byrne
- Known for
- Acting
- Born
- May 16, 1967
- Birthplace
- 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
- Seahorse
Seahorse TBA
as George

One Sweet Hour 2026
as Colum Byrne

Dead of Winter 2025
as Tall Hunter

Conclave 2024
as O'Malley

Twig 2024
as Leon

The Wonder 2022
as John Flynn

My Salinger Year 2020
as Hugh

Sergio 2020
as Gil Loescher

Queen & Country 2015
as RSM Digby

Jimmy's Hall 2014
as Commander O'Keefe

Medeas 2013
as Ennis

Gilded Lilys 2013
as Edwin Lily

Season of the Witch 2011
as Grandmaster (uncredited)

Brooklyn's Finest 2010
as Det. Ronny Rosario

The International 2009
as The Consultant

Before the Devil Knows You're Dead 2007
as Bobby Lasorda

No Reservations 2007
as Sean

Alexander Hamilton 2007
as Alexander Hamilton

Bug 2007
as Dr. Sweet

The New World 2005
as Lewes

Million Dollar Baby 2004
as Father Horvak

The Blackwater Lightship 2004
as Larry

Easy 2003
as Mick McCabe

Intermission 2003
as Mick

Mapmaker 2001
as Richie Markey

Disco Pigs 2001
as Gerry

Bandits 2001
as Darill Miller

The Grey Zone 2001
as Interrogator

An Everlasting Piece 2000
as George

The Fifth Province 1997
as Timmy

The Last Bus Home 1997
as Jessop

Avenue X 1993
as Sonny
Credits from TMDB.