Acting • AGE 52
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, ...


The Luckiest Man in America
Ed
2025

Red Right Hand
Sheriff Hollister
2024

1923
Zane Davis
2022

Gaslit
Peter
2022

Big Sky
Ronald Pergman
2020

Blindfire
Will Bishop
2020

The Fugitive
Dale
2020

Briarpatch
Gene Colder
2020

Faith
Chris
2019

Extremely Wicked, Shockingly Evil and Vile
Florida Public Defender Dan Dowd
2019

Avenues
Jack
2019

The Standoff at Sparrow Creek
Noah
2019

My Days of Mercy
Weldon
2018

The Alienist
Theodore Roosevelt
2018

Chicago Med
Sean Roman
2015

Wildlike
Uncle
2015

Verbatim: The Ferguson Case
Darren Wilson
2015

The Stanford Prison Experiment
Executive Producer
2015

The Identical
William Hemsley
2014

Loitering with Intent
Devon
2014

Date and Switch
Lars
2014

Chicago P.D.
Sean Roman
2014

Kilimanjaro
Doug
2013

Ass Backwards
Brian
2013

Refuge
Sam
2012

Chicago Fire
Sean Roman
2012

10 Years
Garrity
2012

Heroes and Demons
Dan (segment "The Second Bakery Attack")
2012

Flight
Ken Evans
2012

ATM
David Hargrove
2012

Seven Days in Utopia
Jake
2011

The Second Bakery Attack
Dan
2010

Boardwalk Empire
Agent Warren Knox
2010

Open House
David
2010

The Chameleon
Brian Jansen
2010

Bastard
Man
2010

Krews
Henry McFarlin
2010

Jake Gyllenhaal Challenges the Winner of the Nobel Peace Prize
Fergus O'Donnell (archive footage)
2010

Easier with Practice
Davy Mitchell
2009

The Hurt Locker
Specialist Owen Eldridge
2008

True Blood
Brian Eller
2008

Love Lies Bleeding
Duke
2008

An American Crime
Bradley
2007

I Know Who Killed Me
Jerrod Pointer
2007

We Are Marshall
Tom Bogdan
2006

Cruel World
Collin
2006

The Guardian
Billy Hodge
2006

Bobby
Jimmy
2006

Conversations with Other Women
Groom
2006

Art School Confidential
Stoob
2006

"Jarhead" Diaries
Self
2006

When a Stranger Calls
Bobby
2006

The Elder Son
Greg
2006

Jarhead
Fergus O'Donnell
2005

Town Diary
Young Frank Ryan
2002

Ed
Ari
2000

Law & Order: Special Victims Unit
Peter Butler
1999

The Sopranos
Counter Boy
1999

Law & Order
Phillip Ludwick
1990