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Brían F. O'Byrne

Brían F. O'Byrne

ActingBorn May 16, 1967 (59 years old)

Mullagh, County Cavan, Ireland

IMDb

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.

Also known as: Brían Flynn O'Byrne, Brian O'Byrne, Brían O'Byrne, Брайан Ф. О’Бирн
Popularity: 1
Total credits: 53

Known For

Law & Order: Special Victims Unit
TV
★7.9

Law & Order: Special Victims Unit

as Liam Connors

American Experience
TV
★6.6

American Experience

as Alexander Hamilton

Movies (31)

Dead of Winter

Dead of Winter

as Tall Hunter

2025

Conclave

Conclave

as O'Malley

2024

Twig

TV Shows (22)

Law & Order: Special Victims Unit

Law & Order: Special Victims Unit

as Liam Connors

1 ep.

American Experience

American Experience

as Alexander Hamilton

1 ep.

Oz

Photos

Oz
TV
★8.1

Oz

as Padraic Connelly

The Last Ship
TV
★6.9

The Last Ship

as Sean Ramsey

The Magicians
TV
★7.6

The Magicians

as Mayakovsky

Prisoner
TV
★5.4

Prisoner

as Harrison Dempsey

The Abandons
TV
★5.8

The Abandons

as Walter Paxton

FlashForward
TV
★7.0

FlashForward

as Aaron Stark

Manhunt
TV
★7.6

Manhunt

as Frank McAlpine

Brotherhood
TV
★6.8

Brotherhood

as Colin

Conclave
Movie
★7.2

Conclave

as O'Malley

Million Dollar Baby
Movie
★8.0

Million Dollar Baby

as Father Horvak

Law & Order: Special Victims Unit
TV
★7.9

Law & Order: Special Victims Unit

as Liam Connors

1999

American Experience
TV
★6.6

American Experience

as Alexander Hamilton

1988

Oz
TV
★8.1

Oz

as Padraic Connelly

1997

The Last Ship
TV
★6.9

The Last Ship

as Sean Ramsey

2014

The Magicians
TV
★7.6

The Magicians

as Mayakovsky

2015

Prisoner
TV
★5.4

Prisoner

as Harrison Dempsey

2026

The Abandons
TV
★5.8

The Abandons

as Walter Paxton

2025

FlashForward
TV
★7.0

FlashForward

as Aaron Stark

2009

Manhunt
TV
★7.6

Manhunt

as Frank McAlpine

2017

Brotherhood
TV
★6.8

Brotherhood

as Colin

2006

Conclave
Movie
★7.2

Conclave

as O'Malley

2024

Million Dollar Baby
Movie
★8.0

Million Dollar Baby

as Father Horvak

2004

Twig

as Leon

2024

The Wonder

The Wonder

as John Flynn

2022

My Salinger Year

My Salinger Year

as Hugh

2020

Sergio

Sergio

as Gil Loescher

2020

Queen & Country

Queen & Country

as RSM Digby

2015

Jimmy's Hall

Jimmy's Hall

as Commander O'Keefe

2014

Medeas

Medeas

as Ennis

2013

Gilded Lilys

Gilded Lilys

as Edwin Lily

2013

Brooklyn's Finest

Brooklyn's Finest

as Det. Ronny Rosario

2010

The International

The International

as The Consultant

2009

Before the Devil Knows You're Dead

Before the Devil Knows You're Dead

as Bobby Lasorda

2007

No Reservations

No Reservations

as Sean

2007

Alexander Hamilton

Alexander Hamilton

as Alexander Hamilton

2007

Bug

Bug

as Dr. Sweet

2007

The New World

The New World

as Lewes

2005

Million Dollar Baby

Million Dollar Baby

as Father Horvak

2004

The Blackwater Lightship

The Blackwater Lightship

as Larry

2004

Easy

Easy

as Mick McCabe

2003

Intermission

Intermission

as Mick

2003

Mapmaker

Mapmaker

as Richie Markey

2001

Bandits

Bandits

as Darill Miller

2001

Disco Pigs

Disco Pigs

as Gerry

2001

Dead of Winter

Dead of Winter

as Tall Hunter

2025

Conclave

Conclave

as O'Malley

2024

Twig

Twig

as Leon

2024

The Wonder

The Wonder

as John Flynn

2022

My Salinger Year

My Salinger Year

as Hugh

2020

Sergio

Sergio

as Gil Loescher

2020

Queen & Country

Queen & Country

as RSM Digby

2015

Jimmy's Hall

Jimmy's Hall

as Commander O'Keefe

2014

Medeas

Medeas

as Ennis

2013

Gilded Lilys

Gilded Lilys

as Edwin Lily

2013

Brooklyn's Finest

Brooklyn's Finest

as Det. Ronny Rosario

2010

The International

The International

as The Consultant

2009

Before the Devil Knows You're Dead

Before the Devil Knows You're Dead

as Bobby Lasorda

2007

No Reservations

No Reservations

as Sean

2007

Alexander Hamilton

Alexander Hamilton

as Alexander Hamilton

2007

Bug

Bug

as Dr. Sweet

2007

The New World

The New World

as Lewes

2005

Million Dollar Baby

Million Dollar Baby

as Father Horvak

2004

The Blackwater Lightship

The Blackwater Lightship

as Larry

2004

Easy

Easy

as Mick McCabe

2003

Intermission

Intermission

as Mick

2003

Mapmaker

Mapmaker

as Richie Markey

2001

Bandits

Bandits

as Darill Miller

2001

Disco Pigs

Disco Pigs

as Gerry

2001

Oz

as Padraic Connelly

1 ep.

The Last Ship

The Last Ship

as Sean Ramsey

8 ep.

The Magicians

The Magicians

as Mayakovsky

3 ep.

Prisoner

Prisoner

as Harrison Dempsey

6 ep.

The Abandons

The Abandons

as Walter Paxton

7 ep.

FlashForward

FlashForward

as Aaron Stark

22 ep.

Manhunt

Manhunt

as Frank McAlpine

8 ep.

Brotherhood

Brotherhood

as Colin

1 ep.

Love/Hate

Love/Hate

as Inpector Mick Moynihan

12 ep.

Lincoln Rhyme: Hunt for the Bone Collector

Lincoln Rhyme: Hunt for the Bone Collector

as The Bone Collector

10 ep.

Aquarius

Aquarius

as Ken Karn

13 ep.

Mildred Pierce

Mildred Pierce

as Bert Pierce

5 ep.

The Bastard Executioner

The Bastard Executioner

as Baron Ventris

1 ep.

Nightflyers

Nightflyers

as Auggie

10 ep.

Hallmark Hall of Fame

Hallmark Hall of Fame

as Larry

1 ep.

Prime Suspect

Prime Suspect

as Reg Duffy

13 ep.

Little Boy Blue

Little Boy Blue

as Steve Jones

4 ep.

Hatton Garden

Hatton Garden

as Basil

4 ep.

Saints & Strangers

Saints & Strangers

as John Billington

2 ep.

Amongst Women

Amongst Women

as Luke

4 ep.

Law & Order: Special Victims Unit

Law & Order: Special Victims Unit

as Liam Connors

1 episodes

American Experience

American Experience

as Alexander Hamilton

1 episodes

Oz

Oz

as Padraic Connelly

1 episodes

The Last Ship

The Last Ship

as Sean Ramsey

8 episodes

The Magicians

The Magicians

as Mayakovsky

3 episodes

Prisoner

Prisoner

as Harrison Dempsey

6 episodes

The Abandons

The Abandons

as Walter Paxton

7 episodes

FlashForward

FlashForward

as Aaron Stark

22 episodes

Manhunt

Manhunt

as Frank McAlpine

8 episodes

Brotherhood

Brotherhood

as Colin

1 episodes

Love/Hate

Love/Hate

as Inpector Mick Moynihan

12 episodes

Lincoln Rhyme: Hunt for the Bone Collector

Lincoln Rhyme: Hunt for the Bone Collector

as The Bone Collector

10 episodes

Aquarius

Aquarius

as Ken Karn

13 episodes

Mildred Pierce

Mildred Pierce

as Bert Pierce

5 episodes

The Bastard Executioner

The Bastard Executioner

as Baron Ventris

1 episodes

Nightflyers

Nightflyers

as Auggie

10 episodes

Hallmark Hall of Fame

Hallmark Hall of Fame

as Larry

1 episodes

Prime Suspect

Prime Suspect

as Reg Duffy

13 episodes

Little Boy Blue

Little Boy Blue

as Steve Jones

4 episodes

Hatton Garden

Hatton Garden

as Basil

4 episodes

Saints & Strangers

Saints & Strangers

as John Billington

2 episodes

Amongst Women

Amongst Women

as Luke

4 episodes