The original thirty-minute version of Scooby-Doo and Scrappy-Doo constitutes the fourth incarnation of the Hanna-Barbera Saturday morning cartoon Scooby-Doo. It premiered on September 22, 1979 and ran for one season on ABC as a half-hour program. A total of sixteen … Casey Kasem, Don Messick, Frank Welker, Heather North, Lennie Weinrib, Patricia Stevens, Marla Frumkin Added on HBO 2022-11-03.