Claim: Scooby-Doo is a fictional character.

Scrappy-Doo is a fictional Great Dane dog created by Hanna-Barbera Productions in 1979 , with the catchphrases , `` Scrappy Dappy Doo '' , `` Lem me at 'em ! '' and `` Puppy Power ! '' . He is the nephew of Hanna-Barbera cartoon star Scooby-Doo . Scrappy has appeared in a number of the various incarnations of the Scooby-Doo cartoon series . Lennie Weinrib provided his voice for one season in 1979 , and from 1980 on it was performed by Don Messick -LRB- who also voiced Scooby -RRB- . In the first live-action theatrical movie , video games , and commercials , he was voiced by Scott Innes .