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.
Scooby-Doo / Fred Jones (voice)
Shaggy Rogers (voice)
Velma Dinkley (voice)
Daphne Blake (voice)
Madelyn Dinkley (voice)
Whirlen Merlin (voice)
Crystal (voice)
Marlon Whirlen (voice)
Mr. Calvin Curdles (voice)
Mrs. Alma Rumblebuns (voice)
Groundskeeper Amos (voice)
Upset Mother (voice)
The Sheriff (voice)
Sherman (voice)
Treena (voice)
GPS (voice)
