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Background of the Show. The Gunsmoke TV series started out as a radio show in 1952 with the actor William Conrad doing the role of Matt Dillon, the town marshall. The show was on the radio for 9 years. John Wayne was the first choice to play Marshall Dillon when the show was added to the TV lineup in 1955.
Gunsmoke's last episode: The Sharecroppers, March 31, 1975 Written by Earl Wallace, Directed by Leonard Katzman, Guest Cast: Susanne Benton, Victor French, Terry Williams, Jacques Aubuchon, Brtice Boxtleitner, Lisa Eilbacher, Graham Jarvis