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.
Jake Gyllenhaal Challenges the Winner of the Nobel Peace Prize
2010
Flight
2012
The Elder Son
2006
Jarhead
2005
The Hurt Locker
2008
ATM
2012
10 Years
2012
The Guardian
2006
When a Stranger Calls
2006
Extremely Wicked, Shockingly Evil and Vile
2019
Red Right Hand
2024
Open House
2010
We Are Marshall
2006
The Identical
2014
The Chameleon
2010
The Luckiest Man in America
2025
Seven Days in Utopia
2011
Conversations with Other Women
2006
An American Crime
2007
Art School Confidential
2006
Bobby
2006
I Know Who Killed Me
2007
Wildlike
2015
The Standoff at Sparrow Creek
2019
My Days of Mercy
2018
Ass Backwards
2013
Refuge
2012
Cruel World
2006
Date and Switch
2014
Blindfire
2020
Love Lies Bleeding
2008
The Second Bakery Attack
2010
Avenues
2019
Krews
2010
Kilimanjaro
2013
Town Diary
2002
Easier with Practice
2009
Loitering with Intent
2014
Bastard
2010
Faith
2019