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 ...
Known For
Complete Filmography

The Dead of Winter
2025
A widowed fisherwoman, while trapped in a Minnesotan blizzard, interrupts the kidnapping of a teenager and soon finds she is the young victim's only h...

Conclave
2024
as O'Malley
After the unexpected death of the Pope, Cardinal Lawrence is tasked with managing the covert and ancient ritual of electing a new one. Sequestered in ...

Twig
2024
as Leon
Twig dreams of escape from a divided Dublin. Her brother's gangland feud traps the people in a culture of fear, surveillance and containment. When tra...

The Wonder
2022
as John Flynn
Haunted by her past, a nurse travels from England to a remote Irish village in 1862 to investigate a young girl's supposedly miraculous fast.

My Salinger Year
2020
as Hugh
A college grad takes a clerical job working for the literary agent of the renowned, reclusive writer J.D. Salinger.

Sergio
2020
as Gil Loescher
A sweeping drama set in the chaotic aftermath of the US invasion of Iraq, where the life of top UN diplomat Brazilian Sérgio Vieira de Mello hangs in ...

Queen & Country
2014
as RSM Digby
In this sequel to Hope and Glory (1987), Bill Rohan has grown up and is drafted into the army, where he and his eccentric best mate, Percy, battle the...

Jimmy's Hall
2014
as Commander O'Keefe
Jimmy Gralton returns from New York and reopens his beloved community hall, only to meet opposition from the local parish.

Medeas
2013
as Ennis
An intimate portrait of a rural family's inner lives and their relationship to a harsh and shifting landscape.

Gilded Lilys
2013
as Edwin Lily
Set in 1895, show revolves around the opening of the first luxury hotel in New York City and all the intermingling of love, treachery, and disdain bet...

Brooklyn's Finest
2010
as Det. Ronny Rosario
Enforcing the law within the notoriously rough Brownsville section of the city and especially within the Van Dyke housing projects is the NYPD's sixty...

The International
2009
as The Consultant
An interpol agent and an attorney are determined to bring one of the world's most powerful banks to justice. Uncovering money laundering, arms trading...

Before the Devil Knows You're Dead
2007
as Bobby Lasorda
When two brothers organize the robbery of their parents' jewelry store, the job goes horribly wrong, triggering a series of events that send them and ...

No Reservations
2007
as Sean
Master chef Kate Armstrong runs her life and her kitchen with intimidating intensity. However, a recipe for disaster may be in the works when she beco...

Alexander Hamilton
2007
as Alexander Hamilton
One of the most controversial men of his age, Alexander Hamilton was a gifted statesman brought down by the fatal flaws of stubbornness, extreme cando...

Bug
2007
as Dr. Sweet
In Oklahoma, Agnes, a lonely waitress living in an isolated and dilapidated roadside motel, meets Peter, a quiet and mysterious man with whom she esta...

The New World
2005
as Lewes
A drama about explorer John Smith and the clash between Native Americans and English settlers in the 17th century.

Million Dollar Baby
2004
as Father Horvak
Despondent over a painful estrangement from his daughter, trainer Frankie Dunn isn't prepared for boxer Maggie Fitzgerald to enter his life. But Maggi...

The Blackwater Lightship
2004
as Larry
A man in the final stages of AIDS is cared for by his sister and mother and grandmother.

Easy
2003
as Mick McCabe
Quirky Jamie Harris is a magnet for less-than-kind men as she hops beds. But things start to look up when she becomes the object of affection of two s...

Intermission
2003
as Mick
A raucous story of the interweaving lives and loves of small-town delinquents, shady cops, pretty good girls and very bad boys. With Irish guts and gr...

Mapmaker
2001
as Richie Markey
Hired to draw a map of tourist sites in a small Northern Ireland town, cartographer Richie Markey (Brian F. O'Byrne) uncovers a dark secret and realiz...

Bandits
2001
as Darill Miller
After escaping from prison, Joe and Terry go on a crime spree, robbing banks through Oregon and California in order to finance their scheme for a new ...

Disco Pigs
2001
as Gerry
Pig and Runt born on the same day, in the same hospital, moments apart. Twins, all but by bloodline. Inseparable from birth, they are almost telepathi...

The Grey Zone
2001
as Interrogator
The story of Auschwitz's twelfth Sonderkommando — one of the thirteen consecutive "Special Squads" of Jewish prisoners placed by the Nazis in the excr...

An Everlasting Piece
2000
as George
Colin is a Catholic and George is a poetry-loving Protestant. In Belfast in the 1980s, they could have been enemies, but instead they became business ...

The Fifth Province
1997
as Timmy
Timmy Sugrue is a persecuted guesthouse keeper and writer who lives with his mad mother in a very rainy part of the Irish midlands. His only consolati...

The Last Bus Home
1997
as Jessop
Though it is late in the punk rock movement, four Dublin youths get together in 1979 to form their own band. Accurately recounting the energy and rawn...