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