William Duffy

William Duffy

Acting

William Duffy is an actor.

Known for

The Mentalist

The Mentalist

2008

Criminal Minds

Criminal Minds

2005

Beverly Hills, 90210

Beverly Hills, 90210

1990

NCIS

NCIS

2003

Law & Order

Law & Order

1990

The West Wing

The West Wing

1999

Heroes

Heroes

2006

It's Always Sunny in Philadelphia

It's Always Sunny in Philadelphia

2005

Acting(27)

2020A West Wing Special to Benefit When We All VoteLarry

2015BoschVault Attendant

2012ScandalRalph Greenwald

2010ParenthoodMr. Carlson

2010The AscentThomas Shaw

2008The MentalistTSA Agent #2

2006HeroesER Doctor

2006Waist DeepNewscaster #2

2006KarlaDetective Porter

2005Criminal MindsDr. Larson

2005It's Always Sunny in PhiladelphiaHedge Fund Guy

2004Sniper 3Richard Addis

2003NCISHarris Cobb

2003The O.C.(voice)

2002American DreamsFather Gregory

2001The DivisionCommander Jackson

1999The West WingStaffer

1999Blast from the PastWorkman #1

1997Double TapGas Man

1994Betrayed by LovePaxton

1992Hearts AfireDoctor

1990Beverly Hills, 90210Doorman

1990Law & OrderCSU Technician

1990The Two JakesDesk Sergeant

1965BrainstormOrderly (uncredited)

William Duffy — Watchpile | Watchpile