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!
Original title Happy Halloween, Scooby-Doo!
IMDb Rating 6.3 947 votes
TMDb Rating 7.7 116 votes
Scooby-Doo / Fred Jones (voice)
Jonathan Crane (Scarecrow) (voice)
Sheriff / Cutler Tot (Voice)