
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.

as Sheriff Hollister

as Will Bishop

as Chris

as Florida Public Defender Dan Dowd

as Jack

as Weldon

as Uncle

as Darren Wilson

as William Hemsley

as Devon

as Lars

as Doug

as Brian

as Sam

as Garrity

as Dan (segment "The Second Bakery Attack")

as Ken Evans

as David Hargrove

as Jake

as Dan

as David

as Brian Jansen

as Man

as Henry McFarlin

as Fergus O'Donnell (archive footage)

as Davy Mitchell

as Specialist Owen Eldridge

as Duke

as Bradley

as Jerrod Pointer

as Tom Bogdan

as Collin

as Billy Hodge

as Jimmy

as Groom

as Stoob

as Self

as Bobby

as Greg

as Fergus O'Donnell

as Young Frank Ryan