Keir O'Donnell (born November 8, 1978) is an Australian actor best known for his roles in the films Wedding Crashers and Paul Blart Mall Cop. He also had guest appearances in episodes of the television series Lost, CSI, and The Closer.

KNOWN FOR

Law & Order: Special Victims Unit
2012
NCIS
2013
CSI: Crime Scene Investigation
2006
Lost
2004
It's Always Sunny in Philadelphia
2008
Fargo
2015
Rizzoli & Isles
2014
The Closer
2006
FBI: Most Wanted
2024
Sons of Anarchy
2008
Californication
2013
Mayor of Kingstown
2024

FILMOGRAPHY

All
Movies
TV
Acting
56
Directing
1
Writing
2
Producing
1
2025
Coyotes
as Devon
2024
Mayor of Kingstown
as Macon
2024
FBI: Most Wanted
as William Barlowe
2023
High Desert
as Stewart
2022
Ambulance
as FBI Agent Anson Clark
2021
The Dry
as Greg Raco
2020
Project Blue Book
as Evan Blake
2019
I'm Just F*cking with You
as Larry Adams
2019
Diddie Wa Diddie
as Brian
2017
Gifted
as Bradley Pollard
2017
The Hammer
as Randy
2017
Sun Records
as Dewey Phillips
2017
Legion
as Daniel
2016
Waffles and Bullet Holes: A Return to Sioux Falls
as Self
2016
Incarnate
as Oliver
2015
Return to Sender
as Tony Desantos
2015
In the Night
as A.P.
2015
Fargo
as Ben Schmidt
2015
Masters of Sex
as Vincent
2014
American Sniper
as Jeff Kyle
2014
Dawn of the Planet of the Apes
as Finney
2014
Bound for Greatness
as Darren Meadows
2014
Rizzoli & Isles
as Craig Johnson
2013
Free Samples
as Danny
2013
A Case of You
as Eliot
2013
Worm
as Dustin (Voice)
2013
Californication
as Beckett Fetch
2013
NCIS
as Ramsey Boone
2013
Maron
as Matt
2012
Complacent
as Thomas Pulchek
2012
Law & Order: Special Victims Unit
as Stuart Andrews
2011
The Man Who Never Cried
as Ralph Winston
2010
When in Rome
as Priest (Father Dino)
2010
No Deal
as Kygan
2010
The Runaways
as Rodney Bingenheimer
2010
My Generation
as Kenneth Finley
2009
Taking Chances
as Digger Morris
2009
Paul Blart: Mall Cop
as Veck
2009
The Mother of Invention
as Tears of a Child Villain
2009
FlashForward
as Ned Ned
2008
Amusement
as The Laugh
2008
Pathology
as Ben Stravinsky
2008
Sons of Anarchy
as Lowell Harland, Jr.
2008
It's Always Sunny in Philadelphia
as Jan
2007
After Sex
as David
2007
What We Do Is Secret
as Chris Ashford
2007
Flakes
as Stuart
2007
It's a Mall World
as Dennis
2006
The Break-Up
as Date (Paul)
2006
Wild West Comedy Show: 30 Days & 30 Nights - Hollywood to the Heartland
as Self
2006
CSI: Crime Scene Investigation
as Ken Richmond
2006
The Closer
as Gerald Curtis
2005
Wedding Crashers
as Todd Cleary
2004
Starkweather
as Bob Von Buch
2004
8 Simple Rules
as Derek
2004
Lost
as Thomas