William Duffy
Biography
William Duffy is an actor.
Known For
TV
NCIS
Harris Cobb
2003
TV
Law & Order
CSU Technician
1990
TV
The Mentalist
TSA Agent #2
2008
TV
Criminal Minds
Dr. Larson
2005
TV
The West Wing
Staffer
1999
TV
Heroes
ER Doctor
2006
TV
It's Always Sunny in Philadelphia
Hedge Fund Guy
2005
TV
Beverly Hills, 90210
Doorman
1990
TV
Scandal
Ralph Greenwald
2012
TV
Bosch
Vault Attendant
2015
TV
The O.C.
(voice)
2003
TV
The Division
Commander Jackson
2001
TV
Parenthood
Mr. Carlson
2010
TV
American Dreams
Father Gregory
2002
TV
Hearts Afire
Doctor
1992
Film
Blast from the Past
Workman #1
1999
TV
Carpoolers
2007
Film
Sniper 3
Richard Addis
2004
Film
Karla
Detective Porter
2006
Film
Waist Deep
Newscaster #2
2006
Filmography
2020FilmA West Wing Special to Benefit When We All Voteas Larry2015TVBoschas Vault Attendant2012TVScandalas Ralph Greenwald2010TVParenthoodas Mr. Carlson2010FilmThe Ascentas Thomas Shaw2008TVThe Mentalistas TSA Agent #22007TVCarpoolers2006TVHeroesas ER Doctor2006FilmWaist Deepas Newscaster #22006FilmKarlaas Detective Porter2005TVCriminal Mindsas Dr. Larson2005TVIt's Always Sunny in Philadelphiaas Hedge Fund Guy2004FilmSniper 3as Richard Addis2003TVNCISas Harris Cobb2003TVThe O.C.as (voice)2002TVAmerican Dreamsas Father Gregory2001TVThe Divisionas Commander Jackson1999TVThe West Wingas Staffer1999FilmBlast from the Pastas Workman #11997FilmDouble Tapas Gas Man1994FilmBetrayed by Loveas Paxton1992TVHearts Afireas Doctor1990TVBeverly Hills, 90210as Doorman1990TVLaw & Orderas CSU Technician1990FilmThe Two Jakesas Desk Sergeant1970FilmLovingas Jay1965FilmBrainstormas Orderly (uncredited)