Sparky Marcus was well known for playing the role of the precocious child but also worked extensively as a voice actor for Hanna-Barbera throughout the 1980s. He started acting at five playing Shelby on Sigmund and the Sea Monsters The Bad News Bears and Goodtime Girls . Voice acting As a voice actor for cartoons, he is probably best known for his role as Richie Rich from the Hanna Barbera series Richie Rich . He later had regular roles as a voice actor on Shirt Tales, Space Stars, Saturday Supercade as the voice of Dexter on Space Ace , Challenge of the GoBots , The Puppy’s Further Adventures , The Reluctant Dragon , Cabbage Patch Kids: First Christmas, Banjo the Woodpile Cat , CBS Library and The Get Along Gang . Television guest appearances Marcus has also made several TV guest appearances, including Trapper John, M.D., Happy Days, WKRP in Cincinnati, What’s Happening!!, Maude, Emergency!, The Hardy Boys/Nancy Drew Mysteries, The Bob Newhart Show, Eight Is Enough and Starsky and Hutch.