William Duffy

The Mentalist

2008 · ★ 8.4 · TSA Agent #2

Law & Order

1990 · ★ 7.3 · CSU Technician

Criminal Minds

2005 · ★ 8.3 · Dr. Larson

NCIS

2003 · ★ 7.6 · Harris Cobb

The West Wing

1999 · ★ 8.3 · Staffer

It's Always Sunny in Philadelphia

2005 · ★ 8.3 · Hedge Fund Guy

Bosch

2015 · ★ 7.9 · Vault Attendant

Scandal

2012 · ★ 7.2 · Ralph Greenwald

Beverly Hills, 90210

1990 · ★ 7.3 · Doorman

Heroes

2006 · ★ 7.5 · ER Doctor

The O.C.

2003 · ★ 7.7 · (voice)

The Division

2001 · Commander Jackson

Parenthood

2010 · ★ 7.5 · Mr. Carlson

American Dreams

2002 · Father Gregory

Blast from the Past

1999 · ★ 6.8 · Workman #1

Hearts Afire

1992 · Doctor

Carpoolers

2007

Sniper 3

2004 · ★ 5.5 · Richard Addis

Waist Deep

2006 · ★ 6.4 · Newscaster #2

The Two Jakes

1990 · ★ 6.0 · Desk Sergeant

Karla

2006 · ★ 5.4 · Detective Porter

Double Tap

1997 · Gas Man

Death Game

1977 · Executive Producer

Brainstorm

1965 · Orderly (uncredited)

A West Wing Special to Benefit When We All Vote

2020 · Larry

Loving

1970 · Jay

Betrayed by Love

1994 · Paxton

The Ascent

2010 · Thomas Shaw