William Duffy
Biography
William Duffy is an actor.
Known for
7.3Law & Order
1990
7.6NCIS
2003
8.4The Mentalist
2008
8.3Criminal Minds
2005
7.3Beverly Hills, 90210
1990
8.3It's Always Sunny in Philadelphia
2005
8.3The West Wing
1999
7.9Bosch
2015
7.5Parenthood
2010
7.2Scandal
2012
7.4Heroes
2006
7.7The O.C.
2003
7.1The Division
2001
5.2American Dreams
2002
7.8Hearts Afire
1992
6.8Blast from the Past
1999
6.9Carpoolers
2007
6.4Waist Deep
2006