Acting
William Duffy
William Duffy is an actor.
11
Films
16
TV Shows
Known For
27 Credits
Law & Order
as CSU Technician
1990
NCIS
as Harris Cobb
2003
Criminal Minds
as Dr. Larson
2005
The Mentalist
as TSA Agent #2
2008
Beverly Hills, 90210
as Doorman
1990
The West Wing
as Staffer
1999
It's Always Sunny in Philadelphia
as Hedge Fund Guy
2005
Bosch
as Vault Attendant
2015
Heroes
as ER Doctor
2006
Scandal
as Ralph Greenwald
2012
The O.C.
as (voice)
2003
Parenthood
as Mr. Carlson
2010