Happy Halloween, Scooby-Doo!
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!
Cast
Frank Welker
Grey DeLisle
Matthew Lillard
Kate Micucci
Cassandra Peterson
Bill Nye
Dwight Schultz
Kamali Minter
Bumper Robinson
Roger Craig Smith