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Actor
William Duffy
William Duffy is an actor.
Known for
The Mentalist2008
Criminal Minds2005
Heroes2006
NCIS2003
It's Always Sunny in Philadelphia2005
Blast from the Past1999
The O.C.2003
Beverly Hills, 902101990
Filmography
- 2020A West Wing Special to Benefit When We All VoteFilmLarry
- 2015BoschSeriesVault Attendant
- 2012ScandalSeriesRalph Greenwald
- 2010ParenthoodSeriesMr. Carlson
- 2010The AscentFilmThomas Shaw
- 2008The MentalistSeriesTSA Agent #2
- 2007CarpoolersSeries
- 2006HeroesSeriesER Doctor
- 2006Waist DeepFilmNewscaster #2
- 2006KarlaFilmDetective Porter
- 2005Criminal MindsSeriesDr. Larson
- 2005It's Always Sunny in PhiladelphiaSeriesHedge Fund Guy
- 2004Sniper 3FilmRichard Addis
- 2003NCISSeriesHarris Cobb
- 2003The O.C.Series(voice)
- 2002American DreamsSeriesFather Gregory
- 2001The DivisionSeriesCommander Jackson
- 1999Blast from the PastFilmWorkman #1
- 1999The West WingSeriesStaffer
- 1997Double TapFilmGas Man
- 1994Betrayed by LoveFilmPaxton
- 1992Hearts AfireSeriesDoctor
- 1990Beverly Hills, 90210SeriesDoorman
- 1990Law & OrderSeriesCSU Technician
- 1990The Two JakesFilmDesk Sergeant
- 1977Death GameFilmExecutive Producer
- 1970LovingFilmJay
- 1965BrainstormFilmOrderly (uncredited)