Brian Geraghty
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
TV
Law & Order: Special Victims Unit
Peter Butler
1999
TV
Law & Order: Special Victims Unit
Sean Roman
1999
TV
Law & Order
Phillip Ludwick
1990
TV
The Sopranos
Counter Boy
1999
TV
Chicago Fire
Sean Roman
2012
TV
Chicago Med
Sean Roman
2015
TV
Chicago P.D.
Sean Roman
2014
TV
Big Sky
Ronald Pergman
2020
TV
True Blood
Brian Eller
2008
TV
Boardwalk Empire
Agent Warren Knox
2010
TV
1923
Zane Davis
2022
TV
Ed
Ari
2000
TV
The Alienist
Theodore Roosevelt
2018
TV
Gaslit
Peter
2022
TV
Briarpatch
Gene Colder
2020
Film
Jarhead
Fergus O'Donnell
2005
Film
Flight
Ken Evans
2012
Film
The Hurt Locker
Specialist Owen Eldridge
2008
Film
The Guardian
Billy Hodge
2006
Film
Red Right Hand
Sheriff Hollister
2024
Filmography
2025FilmThe Luckiest Man in Americaas Ed2024FilmRed Right Handas Sheriff Hollister2022TV1923as Zane Davis2022TVGaslitas Peter2020TVBig Skyas Ronald Pergman2020FilmBlindfireas Will Bishop2020TVThe Fugitiveas Dale2020TVBriarpatchas Gene Colder2019FilmFaithas Chris2019FilmExtremely Wicked, Shockingly Evil and Vileas Florida Public Defender Dan Dowd2019FilmAvenuesas Jack2019FilmThe Standoff at Sparrow Creekas Noah2018FilmMy Days of Mercyas Weldon2018TVThe Alienistas Theodore Roosevelt2015TVChicago Medas Sean Roman2015FilmWildlikeas Uncle2015FilmVerbatim: The Ferguson Caseas Darren Wilson2014FilmThe Identicalas William Hemsley2014FilmLoitering with Intentas Devon2014FilmDate and Switchas Lars2014TVChicago P.D.as Sean Roman2013FilmKilimanjaroas Doug2013FilmAss Backwardsas Brian2012FilmRefugeas Sam2012TVChicago Fireas Sean Roman2012Film10 Yearsas Garrity2012FilmFlightas Ken Evans2012FilmATMas David Hargrove2011FilmSeven Days in Utopiaas Jake2010FilmThe Second Bakery Attackas Dan2010TVBoardwalk Empireas Agent Warren Knox2010FilmOpen Houseas David2010FilmThe Chameleonas Brian Jansen2010FilmBastardas Man2010FilmKrewsas Henry McFarlin2010FilmJake Gyllenhaal Challenges the Winner of the Nobel Peace Prizeas Fergus O'Donnell (archive footage)2009FilmEasier with Practiceas Davy Mitchell2008FilmThe Hurt Lockeras Specialist Owen Eldridge2008TVTrue Bloodas Brian Eller2008FilmLove Lies Bleedingas Duke2007FilmAn American Crimeas Bradley2007FilmI Know Who Killed Meas Jerrod Pointer2006FilmWe Are Marshallas Tom Bogdan2006FilmCruel Worldas Collin2006FilmThe Guardianas Billy Hodge2006FilmBobbyas Jimmy2006FilmConversations with Other Womenas Groom2006FilmArt School Confidentialas Stoob2006FilmWhen a Stranger Callsas Bobby2006FilmThe Elder Sonas Greg2005FilmJarheadas Fergus O'Donnell2002FilmTown Diaryas Young Frank Ryan2000TVEdas Ari1999TVLaw & Order: Special Victims Unitas Peter Butler1999TVThe Sopranosas Counter Boy1990TVLaw & Orderas Phillip Ludwick