Brian Geraghty
Acting
59
Acting Credits
Biography
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.
Known For
Filmography
The Luckiest Man in America
2025
as Ed
Red Right Hand
2024
as Sheriff Hollister
Gaslit
2022
as Peter
1923
2022
as Zane Davis
Blindfire
2020
as Will Bishop
Briarpatch
2020
as Gene Colder
Big Sky
2020
as Ronald Pergman
The Fugitive
2020
as Dale
The Standoff at Sparrow Creek
2019
as Noah
Extremely Wicked, Shockingly Evil and Vile
2019
as Florida Public Defender Dan Dowd
Avenues
2019
as Jack
Faith
2019
as Chris
My Days of Mercy
2018
as Weldon
The Alienist
2018
as Theodore Roosevelt
Wildlike
2015
as Uncle
Verbatim: The Ferguson Case
2015
as Darren Wilson
Chicago Med
2015
as Sean Roman
Date and Switch
2014
as Lars
Loitering with Intent
2014
as Devon
The Identical
2014
as William Hemsley
Chicago P.D.
2014
as Sean Roman
Ass Backwards
2013
as Brian
Kilimanjaro
2013
as Doug
ATM
2012
as David Hargrove
Refuge
2012
as Sam
Flight
2012
as Ken Evans
10 Years
2012
as Garrity
Heroes and Demons
2012
as Dan (segment "The Second Bakery Attack")
Chicago Fire
2012
as Sean Roman
Seven Days in Utopia
2011
as Jake
Krews
2010
as Henry McFarlin
The Chameleon
2010
as Brian Jansen
The Second Bakery Attack
2010
as Dan
Bastard
2010
as Man
Jake Gyllenhaal Challenges the Winner of the Nobel Peace Prize
2010
as Fergus O'Donnell (archive footage)
Open House
2010
as David
Boardwalk Empire
2010
as Agent Warren Knox
Easier with Practice
2009
as Davy Mitchell
The Hurt Locker
2008
as Specialist Owen Eldridge
Love Lies Bleeding
2008
as Duke
True Blood
2008
as Brian Eller
An American Crime
2007
as Bradley
I Know Who Killed Me
2007
as Jerrod Pointer
When a Stranger Calls
2006
as Bobby
Conversations with Other Women
2006
as Groom
The Elder Son
2006
as Greg
Art School Confidential
2006
as Stoob
We Are Marshall
2006
as Tom Bogdan
The Guardian
2006
as Billy Hodge
Cruel World
2006
as Collin
Bobby
2006
as Jimmy
"Jarhead" Diaries
2006
as Self
Jarhead
2005
as Fergus O'Donnell
Town Diary
2002
as Young Frank Ryan
Ed
2000
as Ari
The Sopranos
1999
as Counter Boy
Law & Order: Special Victims Unit
1999
as Peter Butler
Law & Order: Special Victims Unit
1999
as Sean Roman
Law & Order
1990
as Phillip Ludwick