Directed by Maxwell Atoms   Written by Maxwell Atoms   William Hanna   Joseph Barbera   Bob Kane   Bill Finger   Jerry Robinson   Joe Ruby   Ken Spears   Cast Frank Welker ... Scooby-Doo / Fred Jones (voice) Matthew Lillard ... Shaggy Rogers (voice) Grey Griffin ... Daphne Blake (voice) Kate Micucci ... Velma Dinkley (voice) Cassandra Peterson ... Elvira, Mistress of the Dark (voice) Bill Nye ... Bill Nye (voice) Dwight Schultz ... Dr. Jonathan Crane / Scarecrow (voice) Kamali Minter ... Michelle (voice) Bumper Robinson ... Mike (voice) Roger Craig Smith ... Autopilot / Parent (voice) Fred Tatasciore ... Alpha Jackal Lantern / Federal Agent Malarkey (voice) David Herman ... Sheriff / Cutler Toe (voice) (as Dave Herman) Phyllis Diller ... Self (archive sound) Produced by Maxwell Atoms   Shaun Avnet   Colin A.B.V. Lewis   Sam Register   Original Music by Robert J. Kral   Steve Rucker

Additional Info Premiere: September 14, 2020 DVD Release: October 06, 2020 Country: Distributor: Warner Brother Studios Websites: Alternate Titles Scooby-Doo! Halloween Production Companies Warner Bros. Animation Distributors Warner Bros. Home Entertainment   (2020) (USA) (DVD) Rating Stats Overall Rating 6.2 / 10 Our Rating -- / 10 Your Friends -- / 10 Male Users -- / 10 Female Users -- / 10 Site Ranking #7,502 / 21,031 Site Ranking #7,498 Demonia (1990) #7,499 The Witches Of Oz (2011) #7,500 Outback (2019) #7,501 Adventures Of Power (2008) #7,502 Happy Halloween, Scooby-Doo! (2020) #7,503 Ilsa, The Tigress Of Siberia (1977) #7,504 Beneath Still Waters (2005) #7,505 The Puppetman (2023) #7,506 The Wind (1986)