William Duffy
Actor
William Duffy is an actor.
Known For
8.4
The Mentalist
CrimeDrama
7.3
Law & Order
CrimeDrama
7.6
NCIS
CrimeDrama
8.3
Criminal Minds
CrimeDrama
8.3
The West Wing
Drama
8.3
It's Always Sunny in Philadelphia
Comedy
7.2
Scandal
Drama
7.5
Heroes
Sci-Fi & FantasyDrama
7.9
Bosch
MysteryDrama
7.3
Beverly Hills, 90210
Drama
7.7
The O.C.
Drama
7.1
The Division
Drama
7.5
Parenthood
Drama
5.2
American Dreams
DramaFamily
7.8
Hearts Afire
Comedy
6.8
Blast from the Past
DramaRomance
7.1
Carpoolers
Comedy
6.0
The Two Jakes
CrimeMystery
6.4
Waist Deep
ActionAdventure
5.5
Sniper 3
DramaAction
5.4
Karla
CrimeDrama
5.1
Double Tap
ThrillerAction
6.1
Brainstorm
Thriller
7.9
A West Wing Special to Benefit When We All Vote
DramaTV Movie