Michael C. Mahon
View on IMDb ↗Known for
How I Met Your Mother
Boston Legal
ER
Married... with Children
One West Waikiki
The Orville
Malcolm X
Private Practice
Brimstone
Law & OrderFilmography (42)
- 2026
MercyBooking Sergeant - 2026
Full Moon Rising: The Charles Band StorySelf - 2025
Side QuestJoshua - 2020
Fatal AffairDriver - 2018
A Tale of Two CoreysTeacher - 2017
The OrvilleAltox - 2016
His Secret PastPeterson - 2016
Get a JobBraddock - 2015
Kidnapped: The Hannah Anderson StoryReporter 1 - 2015
The Flight Before ChristmasSanta Claus - 2015
OminousRachel's Doctor - 2014
High School PossessionCoach Burdette - 2013
Gangster SquadCitz Hall Reporter - 2012
ScandalBilly Joe Lee - 2012
Christmas TwisterDoug - 2007
Private PracticeDetective Smith - 2006
Gridiron GangField Coach - 2005
How I Met Your MotherGrumpy Man - 2004
Boston LegalOfficer James Gilmore - 2004
Tomb of TerrorDetective Greenberg - 2003
Las VegasBen Wilcox - 1998
BrimstoneCarl Traynor - 1998
The King of QueensMike - 1997
Beyond Belief: Fact or FictionMr. Baker (segment "Precious") - 1996
ProfilerAdam Thompson - 1996
Josh Kirby... Time Warrior: Last Battle for the UniverseDonald Kirby (as Michael Mahon) - 1996
Shattered MindJack - 1996
Oblivion 2: BacklashSidekick - 1995
Baywatch NightsClean Cut - 1994
ERJoe - 1994
One West Waikiki - 1994
Dark Angel: The AscentDetective Greenberg - 1993
Diagnosis: MurderBarry McCarthy - 1993
Lois & Clark: The New Adventures of SupermanBrian - 1993
RiskSecurity Guard - 1992
Malcolm XPrisoner - 1990
Law & OrderWill Carter - 1989
ChameleonsMichael - 1988
ZitsFBI Agent in Car - 1987
Married... with ChildrenLarry - 1987
Wall StreetTrader - Office - 1983
Sleepaway CampHal