Gareth Williams

Full filmography

• Law & Order (1990) as Technician
• Law & Order (1990) as Ted Quinlan
• Law & Order (1990) as George Siddell
• Law & Order (1990) as CSU Technician
• The Mentalist (2008) as DEA Supervising Agent Maloney
• Criminal Minds (2005) as Tim Harrison
• S.W.A.T. (2017) as Woods
• Yellowstone (2018) as Steven Rawlings
• Castle (2009) as Wesley Grovner
• Hawaii Five-0 (2010) as Alan Pollard
• CSI: Miami (2002) as Ronald
• Mad Men (2007) as Mr. Wheatley
• True Detective (2014) as Police Chief Warren
• The Resident (2018) as Pete Goldense
• Landman (2024) as Arty Roberts
• Dawson's Creek (1998) as Mike Potter
• This Is Us (2016) as Melvin Sandburg
• The Shield (2002) as Walon Burke
• The Practice (1997) as Patrick Emerson
• Homicide: Life on the Street (1993) as Chris Haskett
• Judging Amy (1999) as Oswell Bray
• Angel (1999) as Mr. Chaulk
• Numb3rs (2005) as Baker
• NCIS: New Orleans (2014) as Michael Hollard