Known For
Acting
William Duffy
Biography
William Duffy is an actor.
Movie Appearances
The Two Jakes
as Desk Sergeant
1990
Karla
as Detective Porter
2006
Waist Deep
as Newscaster #2
2006
Sniper 3
as Richard Addis
2005
Blast from the Past
as Workman #1
1999
The Ascent
as Thomas Shaw
2010
Brainstorm
as Orderly (uncredited)
1965
Betrayed by Love
as Paxton
1994
A West Wing Special to Benefit When We All Vote
as Larry
2020
Double Tap
as Gas Man
1997
Loving
as Jay
1970
TV Appearances
The Mentalist
as TSA Agent #2
2008
Heroes
as ER Doctor
2006
Hearts Afire
as Doctor
1992
Parenthood
as Mr. Carlson
2010
Criminal Minds
as Dr. Larson
2005
Scandal
as Ralph Greenwald
2012
The West Wing
as Staffer
1999
It's Always Sunny in Philadelphia
as Hedge Fund Guy
2005
Bosch
as Vault Attendant
2015
Law & Order
as CSU Technician
1990
The O.C.
as (voice)
2003
American Dreams
as Father Gregory
2002