Acting
Brian O'Neill is an actor and director.
TVSheriff Country
2025
as Kurt
MovieRelay
2025
as USPS Clerk - Terry
MovieThe Mealybug
2024
as Dean Olivetti
TVAmerican Sports Story: Aaron Hernandez
2024
as President Bernie Machen
TVThe Night Agent
2023
as Andre Kimbal
MovieThe Blacklight
2021
as Benny
TVFBI: Most Wanted
2020
as Donald Jennings
MovieAmerican Dreamin'
2019
as Stage Manager
TVSeven Seconds
2018
as Judge Robert P. Dolan
MovieLillies in the Forest
2017
TVMy Sordid Affair
2017
as Noah Parker
TVSearch Party
2016
as Mick
TVBlindspot
2015
as Coach Jones
MovieFrank the Bastard
2015
as Joe O'Conner
TVGotham
2014
as Robert Hastings
TVMadam Secretary
2014
as Navy Admiral
TVThe Blacklist
2013
as Gen. Warren Ames
TVElementary
2012
as Kemper Family Attorney
MovieThe Bourne Legacy
2012
as Landy Reporter
TVHomeland
2011
as Director Stendig
TVPerson of Interest
2011
as Judge Peterson
TVUnforgettable
2011
as Frank Harbert
TVThe Good Wife
2009
as Judge Earl Hovick
TVCupid
2009
as Supervisor
MovieBurn After Reading
2008
as Hal
MovieChapter 27
2007
as Patrick
TVDamages
2007
as Lester Donohue
MovieBrooklyn Rules
2007
as Priest
TVLaw & Order: Trial by Jury
2005
as Zack Martel
TVAvatar: The Last Airbender
2005
as Gansu (voice)
MovieLaws of Attraction
2004
as Limo Driver
MovieThree Long Years
2003
as Folk Singer
TVLaw & Order: Criminal Intent
2001
as Robert Kelly
TVThird Watch
1999
as Father O'Roarke
TVLaw & Order: Special Victims Unit
1999
as Chief Sullivan
TVLaw & Order
1990
as Jack Donovan
