Brian O'Neill

★ Acting #78,818

• Acting

Known for: Acting

Brian O'Neill

★ Acting #78,818

Brian O'Neill is an actor and director.

Known For

Avatar: The Last Airbender

88%

Gansu (voice)

2005

Law & Order: Special Victims Unit

80%

Chief Sullivan

1999

Gotham

76%

Robert Hastings

2014

The Blacklist

76%

Gen. Warren Ames

2013

Homeland

76%

Director Stendig

2011

Blindspot

74%

Coach Jones

2015

Person of Interest

81%

Judge Peterson

2011

Elementary

76%

Kemper Family Attorney

2012

Relay

70%

USPS Clerk - Terry

2025

The Mealybug

Dean Olivetti

2024

American Sports Story: Aaron Hernandez

71%

President Bernie Machen

2024

The Blacklight

60%

Benny

2021

Blood and Money

54%

Executive Producer

2020

FBI: Most Wanted

76%

Donald Jennings

2020

American Dreamin'

Stage Manager

2019

Seven Seconds

73%

Judge Robert P. Dolan

2018

Lillies in the Forest

60%

2017

Lillies in the Forest

60%

Director

2017

My Sordid Affair

10%

Noah Parker

2017

Search Party

69%

Mick

2016

Blindspot

74%

Coach Jones

2015

Frank the Bastard

23%

Joe O'Conner

2015

Gotham

76%

Robert Hastings

2014

Madam Secretary

70%

Navy Admiral

2014

The Blacklist

76%

Gen. Warren Ames

2013

Elementary

76%

Kemper Family Attorney

2012

The Bourne Legacy

63%

Landy Reporter

2012

Homeland

76%

Director Stendig

2011

Person of Interest

81%

Judge Peterson

2011

Unforgettable

72%

Frank Harbert

2011

The Good Wife

76%

Judge Earl Hovick

2009

Cupid

60%

Supervisor

2009

Burn After Reading

67%

Hal

2008

Chapter 27

54%

Patrick

2007

Damages

75%

Lester Donohue

2007

Brooklyn Rules

58%

Priest

2007