Cast & creator
Brian O'Neill
Best known for Law & Order: Special Victims Unit, Law & Order, Law & Order
Brian O'Neill is an actor and director.
15
film credits
28
television credits
41
1990–2026 · acting roles
6.7
average across scored titles
Signature credits
Known for
Across film & television
Filmography (43)
Showing 43 of 43 credits
Law & Order: Special Victims Unit
Chief Sullivan
1999
Law & Order
Jack Donovan
1990Law & Order
Frances Curran
1990Law & Order
Russell Woods
1990Law & Order
Eddie Collins
1990
The Blacklist
Gen. Warren Ames
2013
Law & Order: Criminal Intent
Robert Kelly
2001
The Good Wife
Judge Earl Hovick
2009
The Night Agent
Andre Kimbal
2023
Person of Interest
Judge Peterson
2011
Elementary
Kemper Family Attorney
2012
FBI: Most Wanted
Donald Jennings
2020
Homeland
Director Stendig
2011
Third Watch
Father O'Roarke
1999
Gotham
Robert Hastings
2014
Madam Secretary
Navy Admiral
2014
Blindspot
Coach Jones
2015
Damages
Lester Donohue
2007
Unforgettable
Frank Harbert
2011
Avatar: The Last Airbender
Gansu (voice)
2005
Sheriff Country
Kurt
2025
Law & Order: Trial by Jury
Zack Martel
2005
The Bourne Legacy
Landy Reporter
2012
American Sports Story: Aaron Hernandez
President Bernie Machen
2024
Search Party
Mick
2016
Seven Seconds
Judge Robert P. Dolan
2018
Burn After Reading
Hal
2008
Relay
USPS Clerk - Terry
2025
666 Park Avenue
Monsignor Williams
2012
Cupid
Supervisor
2009
Laws of Attraction
Limo Driver
2004
Dark Hollow
2026
My Sordid Affair
Noah Parker
2017
Blood and Money
Executive Producer
2020
Brooklyn Rules
Priest
2007
Chapter 27
Patrick
2007
American Dreamin'
Stage Manager
2019
Frank the Bastard
Joe O'Conner
2015
Lillies in the Forest
2017Lillies in the Forest
Director
2017
Three Long Years
Folk Singer
2003
The Mealybug
Dean Olivetti
2024
The Blacklight
Benny
2021