Leonard Katzman (September 2, 1927 – September 5, 1996) was an American film and television producer, writer and director. He was most notable for being the showrunner of the CBS oil soap opera Dallas. Early life and career Leonard Katzman was born in New York City on September 2, 1927, to a Jewish family. He began his career in the 1940s, while still in his teens, working as an assistant director for his uncle, Hollywood producer Sam Katzman. He started out on adventure movie serials such as Brenda Starr, Reporter (1945), Superman (1948), Batman and Robin (1949), The Great Adventures of Captain Kidd (1951), Riding with Buffalo Bill (1954), et al. During the 1950s he continued working as assistant director, mostly with his uncle, in feature films such as A Yank in Korea (1951), The Giant Claw (1957), Face of a Fugitive (1959) and Angel Baby (1961). Besides his big screen work, Katzman also served on television shows, including The Adventures of Wild Bill Hickok, The Mickey Rooney Show and Bat Masterson. In 1960, Katzman made his production debut, serving not only as assistant director, but also as associate producer, on all four seasons of adventure drama Route 66 (1960-1964), which he would later regard as his favorite production. His additional early work in television production (and occasional writing and directing) includes shows crime drama Tallahassee 7000 (1961), western drama The Wild Wild West (1965-1969), the second season of crime drama Hawaii Five-O (1969-1970), legal drama Storefront Lawyers (1970-1971), the final five seasons of western drama Gunsmoke (1970-1975) as well as its spinoff series Dirty Sally (1974), legal drama Petrocelli (1974-1976) for which he was nominated an Edgar Allan Poe Award, and the two science fiction dramas The Fantastic Journey (1977) and Logan's Run (1977-1978). In 1965, he wrote, produced and directed the science fiction film Space Probe Taurus (also known as Space Monster). Aside from his work as assistant director, this was his only venture into feature films. Dallas In 1978, Katzman served as producer for the five-part miniseries Dallas, which would evolve into one of television's longest running dramas, lasting until 1991. While the series was created by David Jacobs, Katzman became the de facto show runner during the second season of the show, as Jacobs stepped down to create and later run Dallas spin-off series Knots Landing. Under Katzman's lead, Dallas, whose first episodes had consisted of