William Duffy
Known for: Acting
William Duffy is an actor.
Known for
The Ascent
2010
Waist Deep
2006
Sniper 3
2004
Karla
2006
The Mentalist
2008
Heroes
2006
A West Wing Special to Benefit When We All Vote
2020
Hearts Afire
1992
Parenthood
2010
Betrayed by Love
1994
Criminal Minds
2005
Scandal
2012
The West Wing
1999
It's Always Sunny in Philadelphia
2005
Double Tap
1997
Loving
1970
Bosch
2015
Law & Order
1990
The O.C.
2003
The Two Jakes
1990
American Dreams
2002
The Division
2001
NCIS
2003
Carpoolers
2007
Beverly Hills, 90210
1990
Blast from the Past
1999
Brainstorm
1965