The gang goes on a trip to check on Velma's younger sister, Madelyn. She's been studying stage magic at the Whirlen Merlin Magic Academy, where apparently there have been sightings of a giant griffin. The gang decides to investigate.
Frank Welker
Scooby-Doo / Fred Jones (voice)
Matthew Lillard
Shaggy Rogers (voice)
Mindy Cohn
Velma Dinkley (voice)
Grey DeLisle
Daphne Blake (voice)
Danica McKellar
Madelyn Dinkley (voice)
James Patrick Stuart
Whirlen Merlin (voice)