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
Matthew Lillard
Mindy Cohn
Grey DeLisle
Danica McKellar
James Patrick Stuart
Crystal Scales
Brian Posehn
Jeffrey Tambor
Diane Delano
John DiMaggio
Melique Berger
John Stephenson
Dee Bradley Baker
Olivia Hack
Dave Attell