William Duffy
Acting
Biography
William Duffy is an actor.
Latest News
Known For
Filmography
2020
A West Wing Special to Benefit When We All Vote
Movie · Larry
7.9
2015
Bosch
TV · Vault Attendant
7.9
2012
Scandal
TV · Ralph Greenwald
7.2
2010
Parenthood
TV · Mr. Carlson
7.5
2010
The Ascent
Movie · Thomas Shaw
3.2
2008
The Mentalist
TV · TSA Agent #2
8.4
2007
Carpoolers
TV
7.1
2006
Heroes
TV · ER Doctor
7.4
2006
Waist Deep
Movie · Newscaster #2
6.4
2006
Karla
Movie · Detective Porter
5.4
2005
Criminal Minds
TV · Dr. Larson
8.3
2005
It's Always Sunny in Philadelphia
TV · Hedge Fund Guy
8.3
2004
Sniper 3
Movie · Richard Addis
5.5
2003
NCIS
TV · Harris Cobb
7.6
2003
The O.C.
TV · (voice)
7.7
2002
American Dreams
TV · Father Gregory
5.2
2001
The Division
TV · Commander Jackson
7.1
1999
The West Wing
TV · Staffer
8.3
1999
Blast from the Past
Movie · Workman #1
6.8
1997
Double Tap
Movie · Gas Man
5.1
1994
Betrayed by Love
Movie · Paxton
6.5
1992
Hearts Afire
TV · Doctor
7.8
1990
Beverly Hills, 90210
TV · Doorman
7.3
1990
Law & Order
TV · CSU Technician
7.3