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