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
Matt Dillon (Gunsmoke) first episode was introduced by John Wayne in a brief film clip in which Wayne predicted that James Arness would become a major star. He went on to play the part for the next twenty years. A popular story holds that Wayne himself had been offered the part and had turned it down. Charles Marquis Warren, who produced the first year of the television version of "Gunsmoke" and made the major casting decisions, stated that he had jokingly asked Wayne whether he would be interested in the part in a casual social setting. He added that Wayne had indicated in