Acting
Brian Geraghty
Born May 13, 1974 · Toms River, New Jersey, USA
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
7.3
Flight
Ken Evans
7.5
The Hurt Locker
Specialist Owen Eldridge
8.1
Law & Order: Special Victims Unit
Peter Butler, Sean Roman
9.2
The Sopranos
Counter Boy
6.7
Extremely Wicked, Shockingly Evil and Vile
Florida Public Defender Dan Dowd
7.0
Jarhead
Fergus O'Donnell
8.1
Chicago P.D.
Sean Roman
8.0
Chicago Fire
Sean Roman
7.9
True Blood
Brian Eller
6.9
The Guardian
Billy Hodge
8.5
Boardwalk Empire
Agent Warren Knox
7.6
Chicago Med
Sean Roman
5.1
When a Stranger Calls
Bobby
6.8
The Stanford Prison Experiment
Executive Producer
8.3
1923
Zane Davis
7.1
We Are Marshall
Tom Bogdan
7.2
An American Crime
Bradley
7.8
Law & Order
Phillip Ludwick
7.7
The Alienist
Theodore Roosevelt
4.7
ATM
David Hargrove
Filmography
- 2025The Luckiest Man in AmericaEdMovie
- 2024Red Right HandSheriff HollisterMovie
- 20221923Zane DavisSeries
- 2022GaslitPeterSeries
- 2020Big SkyRonald PergmanSeries
- 2020BlindfireWill BishopMovie
- 2020The FugitiveDaleSeries
- 2020BriarpatchGene ColderSeries
- 2019FaithChrisMovie
- 2019Extremely Wicked, Shockingly Evil and VileFlorida Public Defender Dan DowdMovie
- 2019AvenuesJackMovie
- 2019The Standoff at Sparrow CreekNoahMovie
- 2018My Days of MercyWeldonMovie
- 2018The AlienistTheodore RooseveltSeries
- 2015Chicago MedSean RomanSeries
- 2015WildlikeUncleMovie
- 2015Verbatim: The Ferguson CaseDarren WilsonMovie
- 2015The Stanford Prison ExperimentExecutive ProducerMovie
- 2014The IdenticalWilliam HemsleyMovie
- 2014Loitering with IntentDevonMovie
- 2014Date and SwitchLarsMovie
- 2014Chicago P.D.Sean RomanSeries
- 2013KilimanjaroDougMovie
- 2013Ass BackwardsBrianMovie
- 2012RefugeSamMovie
- 2012Chicago FireSean RomanSeries
- 201210 YearsGarrityMovie
- 2012Heroes and DemonsDan (segment "The Second Bakery Attack")Movie
- 2012FlightKen EvansMovie
- 2012ATMDavid HargroveMovie
- 2011Seven Days in UtopiaJakeMovie
- 2010The Second Bakery AttackDanMovie
- 2010Boardwalk EmpireAgent Warren KnoxSeries
- 2010Open HouseDavidMovie
- 2010The ChameleonBrian JansenMovie
- 2010BastardManMovie
- 2010KrewsHenry McFarlinMovie
- 2010Jake Gyllenhaal Challenges the Winner of the Nobel Peace PrizeFergus O'Donnell (archive footage)Movie
- 2009Easier with PracticeDavy MitchellMovie
- 2008The Hurt LockerSpecialist Owen EldridgeMovie
- 2008True BloodBrian EllerSeries
- 2008Love Lies BleedingDukeMovie
- 2007An American CrimeBradleyMovie
- 2007I Know Who Killed MeJerrod PointerMovie
- 2006We Are MarshallTom BogdanMovie
- 2006Cruel WorldCollinMovie
- 2006The GuardianBilly HodgeMovie
- 2006BobbyJimmyMovie
- 2006Conversations with Other WomenGroomMovie
- 2006Art School ConfidentialStoobMovie
- 2006"Jarhead" DiariesSelfMovie
- 2006When a Stranger CallsBobbyMovie
- 2006The Elder SonGregMovie
- 2005JarheadFergus O'DonnellMovie
- 2002Town DiaryYoung Frank RyanMovie
- 2000EdAriSeries
- 1999Law & Order: Special Victims UnitPeter Butler, Sean RomanSeries
- 1999The SopranosCounter BoySeries
- 1990Law & OrderPhillip LudwickSeries
- —KockroachMovie