Trending
7.3
Law & Order
1990· TV Series
William Duffy
Acting
Biography
William Duffy is an actor.
Known For
7.6
NCIS
2003· TV Series
Top
8.3
The Mentalist
2008· TV Series
Top
8.3
Criminal Minds
2005· TV Series
8.2
The West Wing
1999· TV Series
7.3
Beverly Hills, 90210
1990· TV Series
7.9
Bosch
2015· TV Series
Top
8.3
It's Always Sunny in Philadelphia
2005· TV Series
7.2
Scandal
2012· TV Series
7.7
The O.C.
2003· TV Series
7.5
Heroes
2006· TV Series
7.5
Parenthood
2010· TV Series
Filmography
- 2020MovieA West Wing Special to Benefit When We All Voteas Larry
- 2015TVBoschas Vault Attendant
- 2012TVScandalas Ralph Greenwald
- 2010TVParenthoodas Mr. Carlson
- 2010MovieThe Ascentas Thomas Shaw
- 2008TVThe Mentalistas TSA Agent #2
- 2007TVCarpoolers
- 2006TVHeroesas ER Doctor
- 2006MovieWaist Deepas Newscaster #2
- 2006MovieKarlaas Detective Porter
- 2005TVCriminal Mindsas Dr. Larson
- 2005TVIt's Always Sunny in Philadelphiaas Hedge Fund Guy
- 2005MovieSniper 3as Richard Addis
- 2003TVNCISas Harris Cobb
- 2003TVThe O.C.as (voice)
- 2002TVAmerican Dreamsas Father Gregory
- 2001TVThe Divisionas Commander Jackson
- 1999TVThe West Wingas Staffer
- 1999MovieBlast from the Pastas Workman #1
- 1997MovieDouble Tapas Gas Man
- 1994MovieBetrayed by Loveas Paxton
- 1992TVHearts Afireas Doctor
- 1990TVBeverly Hills, 90210as Doorman
- 1990TVLaw & Orderas CSU Technician
- 1990MovieThe Two Jakesas Desk Sergeant
- 1970MovieLovingas Jay
- 1965MovieBrainstormas Orderly (uncredited)