Scooby-Doo and Shaggy must go into the underworld ruled by The Goblin King in order to stop a mortal named The Amazing Krudsky who wants power and is a threat to their pals: Fred, Velma, and Daphne.
Frank Welker
as Scooby-Doo / Fred Jones (voice)
Casey Kasem
as Shaggy Rogers (voice)
Grey DeLisle
as Daphne Blake / Cat Witch / Honeybee (voice)
Mindy Cohn
as Velma Dinkley (voice)
Lauren Bacall
as The Grand Witch (voice)
Tim Curry
as The Goblin King (voice)
Jim Belushi
as Glob (voice)
Wayne Knight
as The Amazing Krudsky (voice)
Wallace Shawn
as Mr. Gibbles (voice)
Hayden Panettiere
as Fairy Princess Willow (voice)
Larry Joe Campbell
as Glum (voice)
Jay Leno
as Jack O'Lantern (voice)
