Brian Geraghty

Brian Geraghty

Brian Timothy Geraghty (born May 13, 1974) is an American film and television actor, best known for his roles as Ronald Pergman on Big Sky, Dale on the series The Fugitive, Gene Colder on Briarpatch, Theodore Roosevelt on The Alienist, Police Officer Sean Roman on Chicago P.D., Specialist Owen Eldredge in the Academy Award-winning film The Hurt Locker, Tom Bogdan in We Are Marshall, Billy Hodge in The Guardian, and Fergus O'Donnell in Jarhead.

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Known For

Law & Order: Special Victims Unit

Law & Order: Special Victims Unit

1999 • as Peter Butler

Law & Order: Special Victims Unit

Law & Order: Special Victims Unit

1999 • as Sean Roman

Law & Order

Law & Order

1990 • as Phillip Ludwick

Chicago P.D.

Chicago P.D.

2014 • as Sean Roman

Chicago Fire

Chicago Fire

2012 • as Sean Roman

The Sopranos

The Sopranos

1999 • as Counter Boy

Filmography

2025

The Luckiest Man in America
The Luckiest Man in America
as Ed
Movie - Released: 4/4/2025

2024

Red Right Hand
Red Right Hand
as Sheriff Hollister
Movie - Released: 2/22/2024

2022

Gaslit
Gaslit
as Peter
TV - Released: 4/24/2022
1923
1923
as Zane Davis
TV - Released: 12/18/2022

2020

Blindfire
Blindfire
as Will Bishop
Movie - Released: 11/13/2020
Briarpatch
Briarpatch
as Gene Colder
TV - Released: 2/6/2020
Big Sky
Big Sky
as Ronald Pergman
TV - Released: 11/17/2020
The Fugitive
The Fugitive
as Dale
TV - Released: 8/3/2020

2019

The Standoff at Sparrow Creek
The Standoff at Sparrow Creek
as Noah
Movie - Released: 1/18/2019
Extremely Wicked, Shockingly Evil and Vile
Extremely Wicked, Shockingly Evil and Vile
as Florida Public Defender Dan Dowd
Movie - Released: 5/2/2019
Avenues
Avenues
as Jack
Movie - Released: 3/12/2019
Faith
Faith
as Chris
Movie - Released: 11/1/2019

2018

My Days of Mercy
My Days of Mercy
as Weldon
Movie - Released: 3/31/2018
The Alienist
The Alienist
as Theodore Roosevelt
TV - Released: 1/22/2018

2015

Wildlike
Wildlike
as Uncle
Movie - Released: 9/25/2015
Movie
Verbatim: The Ferguson Case
as Darren Wilson
Movie - Released: 8/5/2015
Chicago Med
Chicago Med
as Sean Roman
TV - Released: 11/17/2015

2014

Date and Switch
Date and Switch
as Lars
Movie - Released: 2/14/2014
Loitering with Intent
Loitering with Intent
as Devon
Movie - Released: 4/18/2014
The Identical
The Identical
as William Hemsley
Movie - Released: 9/5/2014
Chicago P.D.
Chicago P.D.
as Sean Roman
TV - Released: 1/8/2014

2013

Ass Backwards
Ass Backwards
as Brian
Movie - Released: 1/21/2013
Kilimanjaro
Kilimanjaro
as Doug
Movie - Released: 3/9/2013

2012

ATM
ATM
as David
Movie - Released: 2/17/2012
Refuge
Refuge
as Sam
Movie - Released: 10/11/2012
Flight
Flight
as Ken Evans
Movie - Released: 11/2/2012
10 Years
10 Years
as Garrity
Movie - Released: 9/14/2012
Chicago Fire
Chicago Fire
as Sean Roman
TV - Released: 10/10/2012

2011

Seven Days in Utopia
Seven Days in Utopia
as Jake
Movie - Released: 9/2/2011

2010

Krews
Krews
as Henry McFarlin
Movie - Released: 3/1/2010
The Chameleon
The Chameleon
as Brian Jansen
Movie - Released: 6/23/2010
The Second Bakery Attack
The Second Bakery Attack
as Dan
Movie - Released: 10/17/2010
Bastard
Bastard
as Man
Movie - Released: 4/23/2010
Movie
Jake Gyllenhaal Challenges the Winner of the Nobel Peace Prize
as Fergus O'Donnell (archive footage)
Movie - Released: 1/1/2010
Open House
Open House
as David
Movie - Released: 8/3/2010

2009

Easier with Practice
Easier with Practice
as Davy Mitchell
Movie - Released: 6/12/2009

2008

The Hurt Locker
The Hurt Locker
as Specialist Owen Eldridge
Movie - Released: 10/10/2008
Love Lies Bleeding
Love Lies Bleeding
as Duke
Movie - Released: 1/15/2008
True Blood
True Blood
as Brian Eller
TV - Released: 9/7/2008

2007

An American Crime
An American Crime
as Bradley
Movie - Released: 7/27/2007
I Know Who Killed Me
I Know Who Killed Me
as Jerrod Pointer
Movie - Released: 7/27/2007

2006

When a Stranger Calls
When a Stranger Calls
as Bobby
Movie - Released: 2/3/2006
Conversations with Other Women
Conversations with Other Women
as Groom
Movie - Released: 6/7/2006
The Elder Son
The Elder Son
as Greg
Movie - Released: 1/1/2006
Art School Confidential
Art School Confidential
as Stoob
Movie - Released: 5/5/2006
We Are Marshall
We Are Marshall
as Tom Bogdan
Movie - Released: 12/12/2006
The Guardian
The Guardian
as Billy Hodge
Movie - Released: 9/28/2006
Bobby
Bobby
as Jimmy
Movie - Released: 9/5/2006

2005

Jarhead
Jarhead
as Fergus O'Donnell
Movie - Released: 11/4/2005
Cruel World
Cruel World
as Collin
Movie - Released: 9/1/2005

2002

Town Diary
Town Diary
as Young Frank Ryan
Movie - Released: 4/1/2002

2000

Ed
Ed
as Ari
TV - Released: 10/8/2000

1999

The Sopranos
The Sopranos
as Counter Boy
TV - Released: 1/10/1999
Law & Order: Special Victims Unit
Law & Order: Special Victims Unit
as Peter Butler
TV - Released: 9/20/1999
Law & Order: Special Victims Unit
Law & Order: Special Victims Unit
as Sean Roman
TV - Released: 9/20/1999

1990

Law & Order
Law & Order
as Phillip Ludwick
TV - Released: 9/13/1990