Brian Geraghty
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
59
The Luckiest Man in America
2025
Red Right Hand
2024
1923
2022
Gaslit
2022
Big Sky
2020
Blindfire
2020
The Fugitive
2020
Briarpatch
2020
Faith
2019
Extremely Wicked, Shockingly Evil and Vile
2019
Avenues
2019
The Standoff at Sparrow Creek
2019
My Days of Mercy
2018
The Alienist
2018
Chicago Med
2015
Wildlike
2015
Verbatim: The Ferguson Case
2015
The Identical
2014
Loitering with Intent
2014
Date and Switch
2014
Chicago P.D.
2014
Kilimanjaro
2013
Ass Backwards
2013
Refuge
2012
Chicago Fire
2012
10 Years
2012
Heroes and Demons
2012
Flight
2012
ATM
2012
Seven Days in Utopia
2011
The Second Bakery Attack
2010
Boardwalk Empire
2010
Open House
2010
The Chameleon
2010
Bastard
2010
Krews
2010
Jake Gyllenhaal Challenges the Winner of the Nobel Peace Prize
2010
Easier with Practice
2009
The Hurt Locker
2008
True Blood
2008
Love Lies Bleeding
2008
An American Crime
2007
I Know Who Killed Me
2007
We Are Marshall
2006
Cruel World
2006
The Guardian
2006
Bobby
2006
Conversations with Other Women
2006
Art School Confidential
2006
"Jarhead" Diaries
"Jarhead" Diaries
2006
When a Stranger Calls
2006
The Elder Son
2006
Jarhead
2005
Town Diary
2002
Ed
2000
Law & Order: Special Victims Unit
1999
The Sopranos
1999
Law & Order
1990
Kockroach
Kockroach