Scooby, Shaggy and Scrappy are on their way to a Miss Grimwood's Finishing School for Girls, where they've been hired as gym teachers. Once there, however, they find that not only is it actually an all-girl school of famous monsters' daughters but there's a villainess out to enslave the girls.
Casey Kasem
as Shaggy Rogers / Mirror Monster (voice)
Don Messick
as Scooby-Doo / Scrappy-Doo (voice)
Glynis Johns
as Ms. Grimwood (voice)
Susan Blu
as Sibella Dracula (voice)
Patty Maloney
as Tanis the Mummy (voice)
Pat Musick
as Elsa Frankensteen (voice)
Marilyn Schreffler
as Winnie Werewolf (voice)
Russi Taylor
as Phantasma (voice)
Frank Welker
as Matches / Papa Werewolf / Well Dweller (voice)
Andre Stojka
as The Grim Creeper / Mummy Daddy (voice)
Zale Kessler
as Daddy Dracula / Frankenstein Senior (voice)
Hamilton Camp
as Phantom Father (voice)
