Scooby-Doo and the gang team up with their pals, Bill Nye The Science Guy and Elvira Mistress of the Dark, to solve this mystery of gigantic proportions and save Crystal Cove!
Frank Welker
as Scooby-Doo / Fred Jones (voice)
Grey DeLisle
as Daphne Blake (voice)
Matthew Lillard
as Shaggy Rogers (voice)
Kate Micucci
as Velma Dinkley (voice)
Cassandra Peterson
as Elvira, Mistress of the Dark (voice)
Bill Nye
as Bill Nye (voice)
Dwight Schultz
as Dr. Crane, AKA: Scarecrow (voice)
Kamali Minter
as Michelle (voice)
Bumper Robinson
as Mike (voice)
Roger Craig Smith
as Autopilot / Parent (voice)
Fred Tatasciore
as Alpha Jackal-Lantern / Federal Agent Malarkey (voice)
David Herman
as Sheriff, AKA: Cutler Toe (voice)
