
Acting
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 nomin…

Prisoner
as Harrison Dempsey · 6 ep.

The Abandons
as Walter Paxton · 7 ep.

Lincoln Rhyme: Hunt for the Bone Collector
as The Bone Collector · 10 ep.

Hatton Garden
as Basil · 4 ep.

Nightflyers
as Auggie · 10 ep.

Manhunt
as Frank McAlpine · 8 ep.

Little Boy Blue
as Steve Jones · 4 ep.

The Magicians
as Mayakovsky · 3 ep.

Aquarius
as Ken Karn · 13 ep.

The Bastard Executioner
as Baron Ventris · 1 ep.
No Reservations
2007