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Keir O'Donnell
ACTOR

Keir O'Donnell

Known for Dawn of the Planet of the Apes · Lost · Law & Order: Special Victims Unit

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.

Snapshot 2026-10-15

Born
Nov 8, 1978
Birthplace
Sydney, New South Wales, Australia
Known For
Acting

Biography

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.

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Known For

MOVIEDawn of the Planet of the Apes
Dawn of the Planet of the ApesFinney · 2014
★ 7.3
TVLost
LostThomas · 2004
★ 8.0
TVLaw & Order: Special Victims Unit
Law & Order: Special Victims UnitStuart Andrews · 1999
★ 8.0
TVFargo
FargoBen Schmidt · 2014
★ 8.3
TVSons of Anarchy
Sons of AnarchyLowell Harland, Jr. · 2008
★ 8.4
TVNCIS
NCISRamsey Boone · 2003
★ 7.6
TVCSI: Crime Scene Investigation
CSI: Crime Scene InvestigationKen Richmond · 2000
★ 7.6
TVIt's Always Sunny in Philadelphia
It's Always Sunny in PhiladelphiaJan · 2005
★ 8.2

Filmography

Movies

StarkweatherBob Von Buch
2004
Wedding CrashersTodd Cleary
2005
The Break-UpDate (Paul)
2006
Wild West Comedy Show: 30 Days & 30 Nights - Hollywood to the HeartlandSelf
2006
After SexDavid
2007
FlakesStuart
2007
What We Do Is SecretChris Ashford
2007
AmusementThe Laugh
2008
PathologyBen Stravinsky
2008
Paul Blart: Mall CopVeck
2009
Taking ChancesDigger Morris
2009
The Mother of InventionTears of a Child Villain
2009
ND
No DealKygan
2010
The RunawaysRodney Bingenheimer
2010
When in RomePriest (Father Dino)
2010
The Man Who Never CriedRalph Winston
2011
ComplacentThomas Pulchek
2012
A Case of YouEliot
2013
A Case of YouProducer
2013
A Case of YouScreenplay
2013
Free SamplesDanny
2013
WormDustin (Voice)
2013
American SniperJeff Kyle
2014
Bound for GreatnessDarren Meadows
2014
Dawn of the Planet of the ApesFinney
2014
In the NightA.P.
2015
Return to SenderTony Desantos
2015
IncarnateOliver
2016
Waffles and Bullet Holes: A Return to Sioux FallsSelf
2016
GiftedBradley Pollard
2017
The HammerRandy
2017
Diddie Wa DiddieBrian
2019
I'm Just F*cking with YouLarry Adams
2019
The DryGreg Raco
2021
AmbulanceFBI Agent Anson Clark
2022
MarmaladeDirector
2024
MarmaladeWriter
2024
CoyotesDevon
2025

Television

Law & Order: Special Victims UnitStuart Andrews · 1 eps
1999
CSI: Crime Scene InvestigationKen Richmond · 1 eps
2000
8 Simple RulesDerek · 1 eps
2002
NCISRamsey Boone · 1 eps
2003
LostThomas · 1 eps
2004
It's Always Sunny in PhiladelphiaJan · 1 eps
2005
The CloserGerald Curtis · 1 eps
2005
CalifornicationBeckett Fetch · 1 eps
2007
It's a Mall WorldDennis · 13 eps
2007
Sons of AnarchyLowell Harland, Jr. · 4 eps
2008
FlashForwardNed Ned · 1 eps
2009
My GenerationKenneth Finley · 8 eps
2010
Rizzoli & IslesCraig Johnson · 1 eps
2010
MaronMatt · 1 eps
2013
Masters of SexVincent · 1 eps
2013
FargoBen Schmidt · 5 eps
2014
LegionDaniel · 2 eps
2017
Sun RecordsDewey Phillips · 8 eps
2017
Project Blue BookEvan Blake · 4 eps
2019
FBI: Most WantedWilliam Barlowe · 1 eps
2020
Mayor of KingstownMacon · 1 eps
2021
High DesertStewart · 1 eps
2023

Photos

Keir O'Donnell photo
Keir O'Donnell photo
Keir O'Donnell photo
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