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.
2024
as O'Malley
2024
as Leon
2022
as John Flynn
2020
as Hugh
2020
as Gil Loescher
2020
as The Bone Collector
2019
as Basil
2018
as Auggie
2017
as Frank McAlpine
2017
as Steve Jones
2015
as Mayakovsky
2015
as John Billington
2015
as Baron Ventris
2015
as Ken Karn
2014
as RSM Digby
2014
as Commander O'Keefe
2013
as Ennis
2013
as Edwin Lily
2011
as Reg Duffy
2011
as Bert Pierce
2010
as Inpector Mick Moynihan
2010
as Det. Ronny Rosario
2009
as Aaron Stark
2009
as The Consultant
2007
as Bobby Lasorda
2007
as Sean
2007
as Alexander Hamilton
2007
as Dr. Sweet
2006
2005
as Lewes
2004
as Father Horvak
2004
as Larry
2003
as Mick McCabe
2003
as Mick
2001
as Richie Markey
2001
as Darill Miller
2001
as Gerry
2001
as Interrogator
2000
as George
1999
as Liam Connors
1998
as Luke
1997
as Timmy
1997
as Jessop
1997
as Padraic Connelly
1988
as Alexander Hamilton
1951
as Larry