Brían F. O'Byrne

Brían F. O'Byrne

Known for
Acting
Born
May 16, 1967 (age 59)
Birthplace
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

Photos

Brían F. O'Byrne photoBrían F. O'Byrne photoBrían F. O'Byrne photo

Filmography

—
Seahorse

Seahorse

Movie · as George

2026
One Sweet Hour poster

One Sweet Hour

Movie · as Colum Byrne

2026
Prisoner poster

Prisoner

TV · as Harrison Dempsey · 6 eps

2025
Dead of Winter poster

Dead of Winter

Movie · as Tall Hunter

2025
Task poster

Task

TV · as Charlie Boylan

2025
The Abandons poster

The Abandons

TV · as Walter Paxton · 7 eps

2024
Twig poster

Twig

Movie · as Leon

2024
Conclave poster

Conclave

Movie · as O'Malley

2022
The Wonder poster

The Wonder

Movie · as John Flynn

2020
Sergio poster

Sergio

Movie · as Gil Loescher

2020
My Salinger Year poster

My Salinger Year

Movie · as Hugh

2020
Lincoln Rhyme: Hunt for the Bone Collector poster

Lincoln Rhyme: Hunt for the Bone Collector

TV · as The Bone Collector · 10 eps

2019
Hatton Garden poster

Hatton Garden

TV · as Basil · 4 eps

2018
Nightflyers poster

Nightflyers

TV · as Auggie · 10 eps

2017
Little Boy Blue poster

Little Boy Blue

TV · as Steve Jones · 4 eps

2017
Manhunt poster

Manhunt

TV · as Frank McAlpine · 5 eps

2015
Queen & Country poster

Queen & Country

Movie · as RSM Digby

2015
Aquarius poster

Aquarius

TV · as Ken Karn · 13 eps

2015
Saints & Strangers poster

Saints & Strangers

TV · as John Billington · 2 eps

2015
The Bastard Executioner poster

The Bastard Executioner

TV · as Baron Ventris · 1 ep

2015
The Magicians poster

The Magicians

TV · as Mayakovsky · 3 eps

2014
Jimmy's Hall poster

Jimmy's Hall

Movie · as Commander O'Keefe

2014
The Last Ship poster

The Last Ship

TV · as Sean Ramsey · 8 eps

2013
Medeas poster

Medeas

Movie · as Ennis

2013
Gilded Lilys poster

Gilded Lilys

Movie · as Edwin Lily

2011
Season of the Witch poster

Season of the Witch

Movie · as Grandmaster (uncredited)

2011
Mildred Pierce poster

Mildred Pierce

TV · as Bert Pierce · 5 eps

2011
Prime Suspect poster

Prime Suspect

TV · as Reg Duffy · 13 eps

2010
Brooklyn's Finest poster

Brooklyn's Finest

Movie · as Det. Ronny Rosario

2010
Love/Hate poster

Love/Hate

TV · as Inpector Mick Moynihan · 12 eps

2009
The International poster

The International

Movie · as The Consultant

2009
FlashForward poster

FlashForward

TV · as Aaron Stark · 22 eps

2007
No Reservations poster

No Reservations

Movie · as Sean

2007
Before the Devil Knows You're Dead poster

Before the Devil Knows You're Dead

Movie · as Bobby Lasorda

2007
Bug poster

Bug

Movie · as Dr. Sweet

2007
Alexander Hamilton poster

Alexander Hamilton

Movie · as Alexander Hamilton

2006
Brotherhood poster

Brotherhood

TV · as Colin · 1 ep

2005
The New World poster

The New World

Movie · as Lewes

2004
Million Dollar Baby poster

Million Dollar Baby

Movie · as Father Horvak

2004
The Blackwater Lightship poster

The Blackwater Lightship

Movie · as Larry

2003
Easy poster

Easy

Movie · as Mick McCabe

2003
Intermission poster

Intermission

Movie · as Mick

2001
Bandits poster

Bandits

Movie · as Darill Miller

2001
Disco Pigs poster

Disco Pigs

Movie · as Gerry

2001
The Grey Zone poster

The Grey Zone

Movie · as Interrogator

2001
Mapmaker poster

Mapmaker

Movie · as Richie Markey

2000
An Everlasting Piece poster

An Everlasting Piece

Movie · as George

1999
Law & Order: Special Victims Unit poster

Law & Order: Special Victims Unit

TV · as Liam Connors · 1 ep

1998
Amongst Women poster

Amongst Women

TV · as Luke · 4 eps

1997
The Last Bus Home poster

The Last Bus Home

Movie · as Jessop

1997
The Fifth Province poster

The Fifth Province

Movie · as Timmy

1997
Oz poster

Oz

TV · as Padraic Connelly · 1 ep

1993
Avenue X poster

Avenue X

Movie · as Sonny

1988
American Experience poster

American Experience

TV · as Alexander Hamilton · 1 ep

1951
Hallmark Hall of Fame poster

Hallmark Hall of Fame

TV · as Larry · 1 ep