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.

Photos

Filmography

View Law & Order: Special Victims Unit
Law & Order: Special Victims Unit

Law & Order: Special Victims Unit

1999Series
7.9
View American Experience
American Experience

American Experience

1988Series
6.6
View Oz
Oz

Oz

1997Series
8.0
View The Last Ship
The Last Ship

The Last Ship

2014Series
6.8
View The Magicians
The Magicians

The Magicians

2015Series
7.6
View FlashForward
FlashForward

FlashForward

2009Series
7.0
View Manhunt
Manhunt

Manhunt

2017Series
7.6
View Conclave
Conclave

Conclave

2024Film
7.2
View Dead of Winter
Dead of Winter

Dead of Winter

2025Film
6.4
View Aquarius
Aquarius

Aquarius

2015Series
6.5
View Brotherhood
Brotherhood

Brotherhood

2006Series
6.8
View The Abandons
The Abandons

The Abandons

2025Series
5.8