A Pup Named Scooby-Doo is a cartoon show featuring younger versions of the Scooby Doo cast (but is NOT set in the same continuity). It featured the "Scooby-Doo Detective Agency" as pre-teens who, like their older counterparts, solved supernatural themed mysteries in which the Monster of the Week turned out to be some crook in a mask. The show lasted from September, 1988 to August, 1991, a total of 30 episodes. Notable as the last series Don Messick played Scooby Doo in. The show uses several of the same tropes as the original series as well as many of its own.