Matt Dillon (Gunsmoke) (whose "supposed" origins figured in the very first episode of the radio series), and he often referred to Wild Bill Hickok as being a close personal friend. In the television version (which ran from 1955 until 1975), and subsequent TV-movies (1987 to 1994), Matt was portrayed by James Arness. Since most of the early television episodes were based on stories and scripts from the radio version, Arness's initial interpretation and portrayal was similar to William Conrad's. However, as the television version continued, Arness's Marshal Matt Dillon evolved in a number of ways. In the television version, Dillon became more resigned
Matt Dillon (Gunsmoke) impatient with others (including his friends and allies). At all times, however, he managed to remain sufficiently in control of his emotions to perform his difficult job capably and impartially. Conrad's Matt would speak frequently of the still-fragile acceptance of law and order on the frontier and he would sometimes determine his course of action based upon what he honestly felt was necessary to preserve its long-term acceptance. In the radio version, Marshal Dillon spoke of actual persons who were well known in the history of the American West, including later Dodge City personage Wyatt Earp and Billy the Kid