Cast & creator
Gareth Williams
Best known for The Mentalist, Law & Order, Law & Order
Gareth Williams is an American actor.
Also known as: Garreth Williams
31
film credits
45
television credits
76
1990–2024 · acting roles
7.0
average across scored titles
Signature credits
Known for
Across film & television
Filmography (76)
Showing 76 of 76 credits
The Mentalist
DEA Supervising Agent Maloney
2008
Law & Order
Technician
1990Law & Order
Ted Quinlan
1990Law & Order
George Siddell
1990Law & Order
CSU Technician
1990
Criminal Minds
Tim Harrison
2005
Castle
Wesley Grovner
2009
Hawaii Five-0
Alan Pollard
2010
CSI: Miami
Ronald
2002
S.W.A.T.
Woods
2017
Yellowstone
Steven Rawlings
2018
This Is Us
Melvin Sandburg
2016
Mad Men
Mr. Wheatley
2007
The Practice
Patrick Emerson
1997
Numb3rs
Baker
2005
The Resident
Pete Goldense
2018
True Detective
Police Chief Warren
2014
Tracker
Arthur Poness
2024
Mad About You
Mikey
1992
Angel
Mr. Chaulk
1999
Dawson's Creek
Mike Potter
1998
Judging Amy
Oswell Bray
1999
NCIS: New Orleans
Michael Hollard
2014
The Shield
Walon Burke
2002
Homicide: Life on the Street
Chris Haskett
1993
Landman
Arty Roberts
2024
The Division
Eddie
2001
Boston Public
Mr. Glynne
2000
Perception
Brian McGrath
2012
Masters of Sex
Dr. Lyons
2013
Close to Home
John Cooke, Sr.
2005
Family Law
Bob Johnson
1999
Monsters: The Lyle and Erik Menendez Story
Det. Edmonds
2024
MINDHUNTER
Chief Redding
2017
Deadwood
Gem Saloon Patron
2004Deadwood
Smallpox Victim
2004
From the Earth to the Moon
Jim Irwin
1998
Commander in Chief
2005
Law & Order: LA
Jim Bikel
2010
Brooklyn South
Greg Tollins
1997
Silk
Johnny Foster
2011
Legacy
Arthur Crenshaw
1998
In Justice
Larry
2006
Terriers
Mickey Gosney
2010
Volcano
Pete
1997
20th Century Women
Fire Chief
2016
Striking Distance
Chick Chicanis
1993
The Cell
Stargher's Father
2000
Malcolm X
JFK Reporter
1992
You're Not You
Bruce
2014
Full Body Massage
Harry Willis
1999
Hollywoodland
Del
2006Third Term
Talkback Host
2020
Snow Falling on Cedars
FBI Agent
1999
Texas Rangers
Vigilante Vic
2001
Love After Love
Glenn
2018
Trust Me
Chet
2013
No Way Home
Ken Tierno
1997
Keith
Henry
2008
Blood Moon
Barlow Townes
2021
Me and Veronica
Bartender
1993
Palookaville
Ed the Cop
1996
Nobody Wants Your Film
Self
2005
Executive Target
Clay Ripple
1997
13 Moons
Thad
2002
Blessing
Lyle
1994
Drive Me to Vegas and Mars
Officer Mike
2018
American Sausage Standoff
William
2021
Macbeth
Fleance
2001
In Embryo
Perry Williams
2016
A Dying Art
Matt Branstad
The Laughing Woo Woo
Dale
2023
Hard Luck
Raymond
2001
Made Public
Mr. Meier
2019
P.O.V. - Point of View
Rock
2002Watching Walter
Hermann Berghof
2024