Bat Masterson is an American Western television series which was a fictionalized account of the life of real-life marshal, gambler, and journalist Bat Masterson. The title character was played by Gene Barry, and the half-hour black-and-white series ran on NBC from 1958 to 1961. The show was produced by Ziv Television Productions. "Bat" is a nickname for Masterson's first name, Bartholemew, although in both the 1958 pilot "Double Showdown" and 1961 episode "No Amnesty For Death", he says his name is William Barkley Masterson.Although the series was fiction, it was based on the biography Bat Masterson, by Richard O'Connor, as noted by the closing credits.: 143