Happy Halloween Scooby-Doo! is an animated direct-to-video film based on Hanna-Barbera's Scooby-Doo Saturday morning cartoons. It was released on September 15, 2020, as a Walmart exclusive, and had a general release on October 6, 2020.
Starring the Voices of
- Frank Welker as Scooby-Doo and Fred Jones
- Grey Griffin as Daphne Blake
- Matthew Lillard as Shaggy Rogers
- Kate Micucci as Velma Dinkley
- Cassandra Peterson as Elvira, Mistress of the Dark
- Bill Nye as Himself
- Dwight Schultz as Dr. Crane, AKA: Scarecrow
- Kamali Minter as Michelle
- Bumper Robinson as Mike
- Roger Craig Smith as Autopilot, Parent
- Fred Tatasciore as Alpha Jackal-Lantern, Federal Agent Malarkey
- Dave Herman as Sheriff, AKA: Cutler Toe