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William Duffy
Known for
Acting

William Duffy

William Duffy is an actor.

Known for · 28 titles

The Mentalist
8.4

The Mentalist

2008

Law & Order
7.3

Law & Order

1990

NCIS
7.6

NCIS

2003

Criminal Minds
8.3

Criminal Minds

2005

The West Wing
8.3

The West Wing

1999

It's Always Sunny in Philadelphia
8.3

It's Always Sunny in Philadelphia

2005

Heroes
7.4

Heroes

2006

Beverly Hills, 90210
7.3

Beverly Hills, 90210

1990

Bosch
7.9

Bosch

2015

Scandal
7.2

Scandal

2012

The O.C.
7.7

The O.C.

2003

Parenthood
7.5

Parenthood

2010

The Division
7.1

The Division

2001

American Dreams
5.2

American Dreams

2002

Blast from the Past
6.8

Blast from the Past

1999

Hearts Afire
7.8

Hearts Afire

1992

Sniper 3
5.5

Sniper 3

2004

Waist Deep
6.4

Waist Deep

2006

Carpoolers
7.1

Carpoolers

2007

Double Tap
5.1

Double Tap

1997

Karla
5.4

Karla

2006

The Two Jakes
6.0

The Two Jakes

1990

Death Game
5.9

Death Game

1977

Brainstorm
6.1

Brainstorm

1965

Betrayed by Love
6.5

Betrayed by Love

1994

A West Wing Special to Benefit When We All Vote
7.9

A West Wing Special to Benefit When We All Vote

2020

Loving
6.0

Loving

1970

The Ascent
3.2

The Ascent

2010