Acting
William Duffy is an actor.
The Mentalist
2008
Law & Order
1990
NCIS
2003
Criminal Minds
2005
Scandal
2012
The West Wing
1999
It's Always Sunny in Philadelphia
Heroes
2006
Bosch
2015
Beverly Hills, 90210
The O.C.
The Division
2001
Parenthood
2010
American Dreams
2002
Hearts Afire
1992
Blast from the Past
Carpoolers
2007
Sniper 3
2004
The Two Jakes
Waist Deep
