Norman Macdonnell an anthology series they had done. Their boss at CBS, Harry Ackerman, and other network executives dismissed that title, preferring "Gunsmoke", a program heading that Ackerman himself was credited with conceiving. Once given permission to proceed with "Gunsmoke", Macdonnell began developing a detailed production schedule for the new series' 30-minute episodes and arranging auditions to cast its recurring characters. His and Meston’s "Jeff Spain" soon became United States Marshal Matt Dillon, and veteran voice actor William Conrad was chosen by Macdonnell, Meston, and two other CBS screeners to portray that lead character. Other seasoned actors soon filled the needed regular
Matt Dillon (Gunsmoke) television successes. Conrad, in particular, would continue to portray Matt on the radio series until it ended in 1961. He would also go on to direct a number of television programs (including two episodes of "Gunsmoke"), to become "The Narrator" for the original television series of "The Fugitive" (1963–1967) and star in three television series: "Cannon" (1971–1976), "Jake and the Fat Man" (1987–1992), and the short-lived 1981 series "Nero Wolfe". In the 1988 action classic, "Die Hard", Hans Gruber (Alan Rickman), asks John McClane (Bruce Willis) whom he is trying to imitate with his heroics, and he mentions Marshal Dillon