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