The gang has been invited to the Hex Girls' rehersal in a castle as they stumble upon a Vampire mystery.
Cast
- Casey Kasem as Shaggy Rogers
- Frank Welker as Fred Jones and Scooby-Doo
- Grey Delisle as Daphne Blake
- Mindy Cohn as Velma Dinkley
- Jennifer Hale as Thorn
- Kimberly Brooks as Luna
- Jane Weilden as Dusk
- Brian Tochi as J.J. Hakimoto
- James Arnold Taylor as Owen DeCassle and Steve Fortescu
- Nick Jameson as Sttu Fortescu and Richfield