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) events through the use of dialog. Arness's Matt thus naturally evolved into a "strong, silent" type of character who tended to act rather than talk at length about possible courses of action. Perhaps the best measure of Matt Dillon's endurance and physical prowess is how he survived the dozens of gunshot wounds and other assaults on his person during the 20-year run of the television series. In 2013, Marshall Trimble, the board president of the Arizona Historical Society and vice president of the Wild West History Association, documented all of Dillon's wounds from gunfire as well as his other brushes