Brian Geraghty

Known for: Acting

Born: 1974-05-13 (age 52)

From: Toms River, New Jersey, USA

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.

Filmography (59)

MOVIE★ 6.3
The Luckiest Man in America
2025
as Ed
MOVIE★ 6.5
Red Right Hand
2024
as Sheriff Hollister
TV★ 8.3
1923
2022
as Zane Davis
TV★ 6.9
Gaslit
2022
as Peter
TV★ 7.2
Big Sky
2020
as Ronald Pergman
MOVIE★ 6.8
Blindfire
2020
as Will Bishop
TV★ 6.2
The Fugitive
2020
as Dale
TV★ 6.7
Briarpatch
2020
as Gene Colder
MOVIE★ 1.7
Faith
2019
as Chris
MOVIE★ 7.0
Extremely Wicked, Shockingly Evil and Vile
2019
as Florida Public Defender Dan Dowd
MOVIE★ 6.1
Avenues
2019
as Jack
MOVIE★ 6.1
The Standoff at Sparrow Creek
2019
as Noah
MOVIE★ 7.3
My Days of Mercy
2018
as Weldon
TV★ 7.5
The Alienist
2018
as Theodore Roosevelt
TV★ 8.3
Chicago Med
2015
as Sean Roman
MOVIE★ 6.2
Wildlike
2015
as Uncle
MOVIE
Verbatim: The Ferguson Case
2015
as Darren Wilson
MOVIE★ 5.1
The Identical
2014
as William Hemsley
MOVIE★ 4.2
Loitering with Intent
2014
as Devon
MOVIE★ 5.8
Date and Switch
2014
as Lars
TV★ 8.4
Chicago P.D.
2014
as Sean Roman
MOVIE★ 4.8
Kilimanjaro
2013
as Doug
MOVIE★ 4.4
Ass Backwards
2013
as Brian
MOVIE★ 5.9
Refuge
2012
as Sam
TV★ 8.4
Chicago Fire
2012
as Sean Roman
MOVIE★ 5.8
10 Years
2012
as Garrity
MOVIE★ 6.5
Heroes and Demons
2012
as Dan (segment "The Second Bakery Attack")
MOVIE★ 6.9
Flight
2012
as Ken Evans
MOVIE★ 5.1
ATM
2012
as David Hargrove
MOVIE★ 5.7
Seven Days in Utopia
2011
as Jake
MOVIE★ 4.8
The Second Bakery Attack
2010
as Dan
TV★ 8.0
Boardwalk Empire
2010
as Agent Warren Knox
MOVIE★ 4.7
Open House
2010
as David
MOVIE★ 5.3
The Chameleon
2010
as Brian Jansen
MOVIE★ 4.3
Bastard
2010
as Man
MOVIE★ 5.3
Krews
2010
as Henry McFarlin
MOVIE★ 3.8
Jake Gyllenhaal Challenges the Winner of the Nobel Peace Prize
2010
as Fergus O'Donnell (archive footage)
MOVIE★ 6.4
Easier with Practice
2009
as Davy Mitchell
MOVIE★ 7.3
The Hurt Locker
2008
as Specialist Owen Eldridge
TV★ 7.6
True Blood
2008
as Brian Eller
MOVIE★ 6.1
Love Lies Bleeding
2008
as Duke
MOVIE★ 7.3
An American Crime
2007
as Bradley
MOVIE★ 4.4
I Know Who Killed Me
2007
as Jerrod Pointer
MOVIE★ 6.9
We Are Marshall
2006
as Tom Bogdan
MOVIE★ 4.5
Cruel World
2006
as Collin
MOVIE★ 7.1
The Guardian
2006
as Billy Hodge
MOVIE★ 6.4
Bobby
2006
as Jimmy
MOVIE★ 6.3
Conversations with Other Women
2006
as Groom
MOVIE★ 6.1
Art School Confidential
2006
as Stoob
MOVIE
"Jarhead" Diaries
2006
as Self
MOVIE★ 5.7
When a Stranger Calls
2006
as Bobby
MOVIE★ 6.0
The Elder Son
2006
as Greg
MOVIE★ 6.7
Jarhead
2005
as Fergus O'Donnell
MOVIE★ 7.0
Town Diary
2002
as Young Frank Ryan
TV★ 7.7
Ed
2000
as Ari
TV★ 8.0
Law & Order: Special Victims Unit
1999
as Peter Butler
TV★ 8.7
The Sopranos
1999
as Counter Boy
TV★ 7.3
Law & Order
1990
as Phillip Ludwick
MOVIE
Kockroach
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