Name	Known for
James Arness Det. Jim McClain Det. Jim McClain See fewer	Gunsmoke (1955)
Marshall Colt Det. Gates Det. Gates See fewer	Jagged Edge (1985)
George DiCenzo Lt. DeNisco Lt. DeNisco See fewer	Back to the Future (1985)
Carl Franklin Det. Cross Det. Cross See fewer	One False Move (1991)
Richard Lynch Ernie Neil Ernie Neil See fewer	Halloween (2007)
Robert Dryer Billy Monroe Billy Monroe See fewer	Savage Streets (1984)
Jonathan Goldsmith Dave Janoski Dave Janoski See fewer	Mamma Mia! Here We Go Again (2018)
K.C. Martel Frankie Betts Frankie Betts See fewer	E.T. the Extra-Terrestrial (1982)
Carolyn Coates Margaret Stanton Margaret Stanton See fewer	The Hustler (1961)
Laurie Prange Connie Beth French Connie Beth French See fewer	The Incredible Hulk (1977)
Ernest Sarracino Mr. Villaborghi Mr. Villaborghi See fewer	The Hudsucker Proxy (1994)
Mary Meis Barbara Reid Barbara Reid See fewer	McClain's Law (1981)
Art K. Koustik Criminologist (as Art Koustik) Criminologist (as Art Koustik) See fewer	La Bamba (1987)
Burt Edwards Mr. Stanton Mr. Stanton See fewer	Ironclads (1991)
David Clover Det. Anderson Det. Anderson See fewer	WarGames (1983)
Jennifer Gay Stacy Martin Stacy Martin See fewer	The Initiation of Sarah (1978)
Tim O'Keefe Paul Martin Paul Martin See fewer	Quincy M.E. (1976)
Allen Emerson Swamper Swamper See fewer	That Girl (1966)
Pamela Keepe Debbie Debbie See fewer	McClain's Law (1981)
Preston Sparks Tom Levant Tom Levant See fewer	Falcon Crest (1981)
David T. Hayman Detective Detective See fewer	Spin City (1996)
Arte Johnson Actor (uncredited) Actor (uncredited) See fewer	Rowan & Martin's Laugh-In (1967)