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.
Born: May 13, 1974 · Toms River, New Jersey, USA
Filmography (53)
The Luckiest Man in America
2025
Actor: Ed
Red Right Hand
2024
Actor: Sheriff Hollister
TV
1923
2022
Actor: Zane Davis
TV
Gaslit
2022
Actor: Peter
TV
Big Sky
2020
Actor: Ronald Pergman
Blindfire
2020
Actor: Will Bishop
TV
The Fugitive
2020
Actor: Dale
TV
Briarpatch
2020
Actor: Gene Colder
Extremely Wicked, Shockingly Evil and Vile
2019
Actor: Florida Public Def…
Avenues
2019
Actor: Jack
The Standoff at Sparrow Creek
2019
Actor: Noah
My Days of Mercy
2018
Actor: Weldon
TV
The Alienist
2018
Actor: Theodore Roosevelt
TV
Chicago Med
2015
Actor: Sean Roman
Wildlike
2015
Actor: Uncle
The Stanford Prison Experiment
2015
Executive Producer
The Identical
2014
Actor: William Hemsley
Loitering with Intent
2014
Actor: Devon
Date and Switch
2014
Actor: Lars
TV
Chicago P.D.
2014
Actor: Sean Roman
Kilimanjaro
2013
Actor: Doug
Ass Backwards
2013
Actor: Brian
Refuge
2012
Actor: Sam
TV
Chicago Fire
2012
Actor: Sean Roman
10 Years
2012
Actor: Garrity
Flight
2012
Actor: Ken Evans
ATM
2012
Actor: David Hargrove
Seven Days in Utopia
2011
Actor: Jake
The Second Bakery Attack
2010
Actor: Dan
TV
Boardwalk Empire
2010
Actor: Agent Warren Knox
Open House
2010
Actor: David
The Chameleon
2010
Actor: Brian Jansen
Bastard
2010
Actor: Man
Krews
2010
Actor: Henry McFarlin
Easier with Practice
2009
Actor: Davy Mitchell
The Hurt Locker
2008
Actor: Specialist Owen El…
TV
True Blood
2008
Actor: Brian Eller
Love Lies Bleeding
2008
Actor: Duke
An American Crime
2007
Actor: Bradley
I Know Who Killed Me
2007
Actor: Jerrod Pointer
We Are Marshall
2006
Actor: Tom Bogdan
Cruel World
2006
Actor: Collin
The Guardian
2006
Actor: Billy Hodge
Bobby
2006
Actor: Jimmy
Conversations with Other Women
2006
Actor: Groom
Art School Confidential
2006
Actor: Stoob
When a Stranger Calls
2006
Actor: Bobby
The Elder Son
2006
Actor: Greg
Jarhead
2005
Actor: Fergus O'Donnell
TV
Ed
2000
Actor: Ari
TV
Law & Order: Special Victims Unit
1999
Actor: Peter ButlerActor: Sean Roman
TV
The Sopranos
1999
Actor: Counter Boy
TV
Law & Order
1990
Actor: Phillip Ludwick