Cast & creator
Mark O'Halloran
Best known for Law & Order, Brassic, Hidden Assets
Also known as: Mark Anthony O'Halloran
Movies
33
film credits
Series
10
television credits
Career
31
1990–2026 · acting roles
Credit score
6.5
average across scored titles
Signature credits
Known for
Across film & television
Filmography (43)
Showing 43 of 43 credits
Series
★ 7.3
Law & Order
Delgado
1990
Series
★ 8.3
Brassic
Francis
2019
Series
★ 6.8
Hidden Assets
Joe Galvin
2021
Series
★ 7.1
Mary & George
Sir Francis Bacon
2024
Movie
★ 6.1
Queen of the Damned
Rent Boy
2002
Series
★ 6.9
Conversations with Friends
Writer
2022
Movie
★ 6.3
The Miracle Club
Father Dermot Byrne
2023
Movie
★ 7.0
The Guard
Garda No. 1
2011
Series
★ 7.9
The Virtues
Craigy
2019
Movie
★ 7.1
Calvary
Prison Officer
2014
Series
★ 6.7
Mix Tape
Bill
2025
Movie
★ 6.0
Bucking Fastard
2026
Series
★ 5.0
Darklands
Paddy
2019
Series
Prosperity
Writer
2007Series
Prosperity
Creator
2007
Movie
★ 6.9
Adam & Paul
Adam
2004Movie
★ 6.9
Adam & Paul
Writer
2004
Movie
Everybody Digs Bill Evans
Writer
2026
Movie
★ 10.0
A Kiss for Jed Wood
Ray
2011
Movie
★ 5.4
Halal Daddy
Omar
2017Movie
★ 5.4
Halal Daddy
Screenplay
2017
Movie
★ 5.5
Angela Mooney Dies Again
Hank
1997
Movie
★ 4.9
It Is in Us All
Father Mark
2022M
Movie
Mary
Father Walsh
2018
Movie
★ 7.3
Viva
Ray
2015Movie
★ 7.3
Viva
Screenplay
2015H
Movie
★ 3.9
History's Future
MP
2016A
Movie
Away Home
Writer
2005
Movie
John Duffy's Brother
John Duffy's brother
2006T
Movie
Two Point Five Billion
2008
Movie
★ 6.6
Garage
Screenplay
2007
Movie
★ 6.2
Rialto
Screenplay
2020
Movie
Muide Éire
Self
2011
Movie
★ 7.1
Dublin Oldschool
Bates
2018
Movie
★ 7.0
Citizen Lane
Writer
2018
Movie
★ 7.0
Sunlight
Cleggs
2023
Movie
★ 5.4
The Sparrow
2022
Movie
★ 5.0
H3
Bobby Sands
2001
Movie
★ 6.6
Coward
Batman
2012
Movie
★ 5.0
Cellar Door
Kassel
2019
Movie
★ 7.0
An Encounter
Screenplay
2022
Movie
Masquerades of Research: Part I
2021
Movie