An earlier Hanna-Barbera production, Scooby-Doo and the Ghoul School (1988), was set at Miss Grimwood's Finishing School for Ghouls. An installment of the popular Scooby-Doo franchise, Ghoul School was meant to be a backdoor pilot for a series about Miss Grimwood's girls, which never happened. Graveyard High used a similar premise.
Rick Moranis and Kimmy Robertson appeared together in Honey, I Shrunk the Kids.