John Meston and refined the main characters who would populate his and Macdonnell's radio portrayal of Dodge. Jeff Spain soon became United States Marshal Matt Dillon, and veteran voice actor William Conrad was chosen by Meston, Macdonnell, and two other network audition judges to be the lawman and the series' central figure. Other seasoned actors filled the needed regular supporting roles, including Parley Baer as Marshal Dillon's trusty assistant Chester Proudfoot, Howard McNear as Dr. Charles "Doc" Adams, and Georgia Ellis, whose role in the series' early episodes would quickly evolve into the saloon "hostess" Kitty Russell. "Gunsmoke" was broadcast for the
Gunsmoke L&M cigarettes and Remington shaving products. When "Gunsmoke" was adapted for television in 1955, in spite of a campaign to persuade the network, the network was not interested in bringing either Conrad or his radio costars to the television medium. Conrad's weight was rumored to be a deciding factor. Denver Pyle was also considered for the leading role, as was Raymond Burr, who was ultimately also seen as too heavy for the part. Charles Warren, television "Gunsmoke"'s first director, said "His voice was fine, but he was too big. When he stood up, his chair stood with him." According to