Trick or Treat, Scooby-Doo!

Trick or Treat, Scooby-Doo! is an American animated horror comedy direct-to-video (DTV) film based on the TV series Scooby-Doo, Where Are You! in 1969. It was released by Warner Home Video on October 18, 2022. It was written by Audie Harrison, Laura Pollak, and Daniel McClellan, directed by Harrison, and voice directed by Sarah Jane Sherman. The film is the thirty-fourth installment in the Scooby-Doo 2-D animated direct-to-video film series.

Memorable quotes
Olive: And I would have gotten away with it, too, if it weren't for...Hey, where did those meddling kids go?

Coco: Oh, oh, and I would have gotten away with it, too, if it wasn't for you meddling kids.

Characters
Grey DeLisle
 * style="background-color:#clear"| Shaggy Rogers
 * style="background-color:#clear"| Matthew Lillard
 * style="background-color:#clear"| Scooby-Doo
 * style="background-color:#clear"| Frank Welker
 * style="background-color:#d2d2ff"| Cat man/Olive Khadka
 * style="background-color:#aaffaa"| Dee Bradley Baker (cat man)
 * style="background-color:#d2d2ff"| Cat man/Olive Khadka
 * style="background-color:#aaffaa"| Dee Bradley Baker (cat man)
 * style="background-color:#aaffaa"| Dee Bradley Baker (cat man)
 * style="background-color:#clear"| Fred Jones
 * style="background-color:#clear"| Frank Welker
 * style="background-color:#clear"| Velma Dinkley
 * style="background-color:#clear"| Kate Micucci
 * style="background-color:#clear"| Daphne Blake
 * style="background-color:#clear"| Grey DeLisle
 * style="background-color:#d2d2ff"| Inspector
 * style="background-color:#aaffaa"| David Lodge
 * style="background-color:#FDB56C" colspan="2"| Olive's father
 * style="background-color:#FDB56C" colspan="2"| Henna Khadka
 * style="background-color:#clear"| Spooky Space Kook/Henry Bascomb
 * style="background-color:#clear"| Kevin Michael Richardson
 * style="background-color:#clear"| Ghost of Redbeard's Ghost/C.L. Magnus
 * style="background-color:#clear"| Unavailable
 * style="background-color:#clear"| Ghost Clown/Harry the Hypnotist
 * style="background-color:#clear"| David Lodge
 * style="background-color:#clear"| Black Knight/Mr. Wikles
 * style="background-color:#clear"| Dee Bradley Baker
 * style="background-color:#clear"| Charlie, the Funland Robot (photo)
 * style="background-color:#ffff00"| N/A
 * style="background-color:#clear"| Miner Forty-Niner/Hank
 * style="background-color:#clear"| Jeff Bennett
 * style="background-color:#clear"| The Phantom/Bluestone the Great
 * style="background-color:#ffff00"| N/A
 * style="background-color:#clear"| Ghost of Captain Cutler/Captain Cutler
 * style="background-color:#clear"| Matthew Lillard
 * style="background-color:#clear"| Sarah Jenkins
 * style="background-color:#ffff00"| N/A
 * style="background-color:#d2d2ff"| Coco Diablo
 * style="background-color:#aaffaa"| Myrna Velasco
 * style="background-color:#d2d2ff"| Trevor Glume
 * style="background-color:#aaffaa"| Anthony Carrigan
 * style="background-color:#FDB56C" colspan="2"| Count Dracula
 * style="background-color:#d2d2ff"| Esteban
 * style="background-color:#aaffaa"| Dee Bradley Baker
 * style="background-color:#d2d2ff"| Sheriff
 * style="background-color:#aaffaa"| Kevin Michael Richardson
 * style="background-color:#d2d2ff"| Charlie Humdrum
 * style="background-color:#aaffaa"| Jeff Bennett
 * style="background-color:#clear"| George Washington (coin print)
 * style="background-color:#ffff00"| N/A
 * style="background-color:#d2d2ff"| Farmer Avery
 * style="background-color:#ffff00"| N/A
 * style="background-color:#d2d2ff"| Inspector
 * style="background-color:#aaffaa"| Anthony Carrigan
 * style="background-color:#d2d2ff"| Count Friederich Nefario
 * style="background-color:#aaffaa"| Frank Welker
 * style="background-color:#d2d2ff"| Warden Collins
 * style="background-color:#aaffaa"| David Lodge
 * style="background-color:#clear"| John Simms
 * style="background-color:#ffff00"| N/A
 * style="background-color:#clear"| Doctor Najib
 * style="background-color:#ffff00"| N/A
 * style="background-color:#clear"| Stuart Wetherby
 * style="background-color:#ffff00"| N/A
 * style="background-color:#clear"| Doctor Grimsley
 * style="background-color:#ffff00"| N/A
 * style="background-color:#clear"| Mr. Carswell
 * style="background-color:#ffff00"| N/A
 * style="background-color:#d2d2ff"| Daisy
 * style="background-color:#aaffaa"| Grey DeLisle
 * style="background-color:#d2d2ff"| Helga
 * style="background-color:#aaffaa"| Kate Micucci
 * style="background-color:#d2d2ff"| Craggly
 * style="background-color:#aaffaa"| Matthew Lillard
 * style="background-color:#d2d2ff"| Rudy
 * style="background-color:#ffff00"| Frank Welker
 * style="background-color:#d2d2ff"| Librarian
 * style="background-color:#aaffaa"| Jenelle Randall
 * style="background-color:#d2d2ff"| Kid #1
 * style="background-color:#aaffaa"| Unavailable
 * style="background-color:#clear"| Mr. Greenway
 * style="background-color:#ffff00"| N/A
 * style="background-color:#clear"| Julie
 * style="background-color:#ffff00"| N/A
 * style="background-color:#clear"| Alice Dovely
 * style="background-color:#clear"| Unavailable
 * style="background-color:#clear"| Mrs. Higgins
 * style="background-color:#ffff00"| N/A
 * style="background-color:#d2d2ff"| Kid #2
 * style="background-color:#aaffaa"| Unavailable
 * style="background-color:#clear"| Cosgoode Creeps
 * style="background-color:#clear"| Unavailable
 * style="background-color:#clear"| Mr. Crawls
 * style="background-color:#clear"| Unavailable
 * style="background-color:#d2d2ff"| Kid #3
 * style="background-color:#aaffaa"| Unavailable
 * style="background-color:#d2d2ff"| Kid #4
 * style="background-color:#aaffaa"| Unavailable
 * style="background-color:#clear"| Professor Wayne
 * style="background-color:#ffff00"| N/A
 * style="background-color:#d2d2ff"| Daisy
 * style="background-color:#aaffaa"| Grey DeLisle
 * style="background-color:#d2d2ff"| Helga
 * style="background-color:#aaffaa"| Kate Micucci
 * style="background-color:#d2d2ff"| Craggly
 * style="background-color:#aaffaa"| Matthew Lillard
 * style="background-color:#d2d2ff"| Rudy
 * style="background-color:#ffff00"| Frank Welker
 * style="background-color:#d2d2ff"| Librarian
 * style="background-color:#aaffaa"| Jenelle Randall
 * style="background-color:#d2d2ff"| Kid #1
 * style="background-color:#aaffaa"| Unavailable
 * style="background-color:#clear"| Mr. Greenway
 * style="background-color:#ffff00"| N/A
 * style="background-color:#clear"| Julie
 * style="background-color:#ffff00"| N/A
 * style="background-color:#clear"| Alice Dovely
 * style="background-color:#clear"| Unavailable
 * style="background-color:#clear"| Mrs. Higgins
 * style="background-color:#ffff00"| N/A
 * style="background-color:#d2d2ff"| Kid #2
 * style="background-color:#aaffaa"| Unavailable
 * style="background-color:#clear"| Cosgoode Creeps
 * style="background-color:#clear"| Unavailable
 * style="background-color:#clear"| Mr. Crawls
 * style="background-color:#clear"| Unavailable
 * style="background-color:#d2d2ff"| Kid #3
 * style="background-color:#aaffaa"| Unavailable
 * style="background-color:#d2d2ff"| Kid #4
 * style="background-color:#aaffaa"| Unavailable
 * style="background-color:#clear"| Professor Wayne
 * style="background-color:#ffff00"| N/A
 * style="background-color:#clear"| Cosgoode Creeps
 * style="background-color:#clear"| Unavailable
 * style="background-color:#clear"| Mr. Crawls
 * style="background-color:#clear"| Unavailable
 * style="background-color:#d2d2ff"| Kid #3
 * style="background-color:#aaffaa"| Unavailable
 * style="background-color:#d2d2ff"| Kid #4
 * style="background-color:#aaffaa"| Unavailable
 * style="background-color:#clear"| Professor Wayne
 * style="background-color:#ffff00"| N/A
 * style="background-color:#d2d2ff"| Kid #4
 * style="background-color:#aaffaa"| Unavailable
 * style="background-color:#clear"| Professor Wayne
 * style="background-color:#ffff00"| N/A
 * style="background-color:#ffff00"| N/A

Organizations

 * Mystery Incorporated
 * Coolsville Police Department
 * Humdrum Financial Group
 * Misery Company

Locations

 * Earth
 * Nepal
 * Kathmandu
 * Ski resort
 * United States
 * Coolsville
 * Diablo Costumes
 * Grocery
 * Cemetery
 * Scary Witch Shakes
 * Humdrum Financial Group building
 * Rogers residence
 * Joey's
 * Marty's
 * Coolsville Elementary School
 * Coolsville Penitentiary
 * Coolsville Public Library
 * Trevor Glume's Boutique of Doom
 * Banana Split's Ice Cream Hour
 * Game Co.
 * Yogi's Yoga
 * Pet Stop
 * Winterhaven (mentioned)
 * Europe
 * Carpathian Mountains
 * Nefario residence
 * The Sun
 * The Moon

Objects

 * Mystery Jams
 * Scooby Snacks
 * Esteban's laptop
 * The Life and Crimes of Coco Diablo
 * Wishing well
 * Life and Crimes of Friederich Nefario
 * Brain Candy
 * Nuclear Hot Lollipop

Vehicles

 * The Mystery Machine
 * Sheriff's police car
 * Scooby Snacks truck

Filming
It was copyrighted in 2022.

Music
The music was composed by Ryan Shore, with additional music composed by David Bawiec and Fred Emory Smith. The score coordinator was Vinicius Barbosa Pippa.

Song

 * 1) "Scooby-Doo, I'm Blue" - Zach Kibbe
 * 2) "Gum Drops, Sugar Cane"
 * 3) "The Ballroom Blitz" - Sweet
 * 4) "Change" - Joseph Holiday

Crew credits

 * Casting directors: Sarah Noonan, Agnes Kim
 * Editors: Rob Ehrenreich, John Soares
 * Line producer: Joe Goyette
 * Executive producers: Sam Register, Audie Harrison
 * Production managers: Yelim Heo, Alvaro Zelaya
 * Assistant production managers: Scotty Morrison, Cole Crawford Rothacker
 * Art director: Erik D. Martin
 * Lead character designer: Mary Hoffman
 * Character designers: Thaddeus Couldron, Danny "Kano" Kimanyen, Kirk Millett, Dave Sherburne
 * Prop designers: Kyle Bowman, Sophia Chen, Thaddeus Couldron, Demetrice Wilson
 * Character and prop design clean-up designer: Frank Homiski
 * Background designers: Lauren Duda, Joseph McCormick, Victor Ha, Nath Milburn, Steven Hai, Reid Monninger, Jacques Lee, Gary Montalbano, Richard Lee, Julia Moraes, Corey Loving, Trevor Spencer
 * Background painters: Evan Eley, Jessica Marfisi, Amber Aki Huang, Amber Ren, Rebecca Lau, Randolph Williams, Franklin Lei, Vicki Xu
 * Color supervisor: Pamela Long
 * Color designers: Kim Bitsui, David Svend Karoll, Nancy Ulene
 * Storyboard artists: Andrew Bendik, Ernie Keen, Ben Fosselman, Dylan King, Aaron Fryer, Mike Milo, Carolyn Gair, Jackson Read, Sean Glaze, Aaron Springer
 * Storyboard revisionists: Cheska Anilao, Stevan Wahl
 * Associate editor: Ginger Brown
 * Animation timers: Kent Butterworth, Karl Fischer, Russell Calabrese, Herb Moore, Jungja Kim Wolf
 * Animation checkers: Charlene Moncrief, Justin Schultz, Sarah Vidal, Hannah Wolf
 * Animators: Ye Aung, Will Cuhn, Dan Haskett, Jeffrey J Zikry
 * Effects animators: Anthony Akira Andrade, Christopher Graybill
 * Art director of creative services: Matthew Girardi
 * Graphics and titles supervisor: Brenna Kraus
 * Graphics and titles artist: Adrienne Steinbaum
 * Animation services: Snipple Animation Studios
 * Production supervisors: Kaine Patel, Jonathan Tinsay, Romy Garcia
 * Animation director: Denis Tomacruz
 * Key animators: Adrian Lasquite, Froilan Richards, Nelson Ventanilla, Alexander Ferrarez, Gabriel Mase, Nico Polo Loyola, Angelo Teoxon, Gary Banda, Noel De Leon, Camille Pagapulangan, Janiel Cruz, Orlando Inolino, Chris Anacin, Jolan Calibuso, Paul Mejica, Conrado De Castro, Joseph Gibaga, Rafael Grivialde, Cyrus Mesarcia, Joseph Manuel, Reginaldo Dela Cruz, Danilo Guttierez, Juilian Bautista, Reynoel Pedregosa, Dante Clemente, Julio Gibaga, Richard Bue, Delfin Abad, Kenneth Chan, Rommel Santiago, Dino Santos, Kristofferson Santos, Romy Soria, Eddie Salas, Kyzza Littaua, Roxcell Salanguste, Edgardo Francisco, Leopoldo Mapo, Roy Frias, Edson Bazzarin, Mariel Israel, Sarah Jane Mendoza, Enrico Cabalin, Martin Caina, Sunshine Balucanag, Erwin Sabino, Michael Gerundio, Vincent Vargas, Fernan Lagran, Michael Paul Dela Cruz, Xavier Ruiz
 * Layout supervisor: Raquel Cartwright
 * Layout artists: Romeo Abasolo,Janelle Cruz, Sapnu Oliver, Marco Aguilar, Dave Germino, Cassandra Ortego, Alvin Balenbin, Leomel Gueta, Kenneth Papillera, Lei Bernardo, Karrim Guiriba, Christian Peñaflor, Dan Bordonos, Cyrell Mojica, Chris Rio, Aries Cabios, Ric Morilla, Tom Rosete, Karla Comia, John Paul Natividad, Larry Santiago, Marlo Cortes, Charlene Nicolas, Matthew Sawal, Brenda Cruz, Caloy Tinio
 * Background designer: Darwin Camero
 * Background artists: Adrienne Villanueva, Erwin Caspe, Rachelle Francisco, Bodhi Coba, Gladys Almazan, Raydelmar Sumabat, Danilo Dictado, Jody Pangilinan, Reinalyn Capatan, Elaine Quilon, Loureyn Gerona, Reynante Fausto, Erick Sengco, Mary Penafranda, Ruth Ruman
 * Clean-up/Inbetween department head: Alex Baloloy
 * Clean-up/Inbetween checkers: Melvin Aliño, John Mike Glum
 * Clean-up/Inbetween artists: Abeguil Llanita, Eduardo Mendoza, Jef Fischer, Raffy Chavez, Adrian Salcedo, Edward Villanueva, Jeffrey Panimdim, Renzo Collao, Albert Feliciano, Edwin Delos Reyes, Jenyza Sytico, Rio Gomez, Aljon Moran, Elijah Chua, Jo Aneko Savilla, Rochelle Garcia, Alwen Castor, Eljon Codia, Joan Agliam, Rodel Lopez, Angel Purisima, Emmanuel Sagaral, Joan Callueng, Roderick Reyta, Arman Ibuyan, Emerson De Guzman, Joel Castillo, Rofel Villar, Arnel Lopez, Eric Galit, John Gerald Osila, Rommel Tabang, Arvin Dela Cruz, Ericka Sevilla, John Ray Balquin, Ronald Balboa, Arzen Tapia, Ernaldo Martinez, Johnny Rosales, Ronald Dado, Bernard Pahati, Fatima Bobis, Jommel Salvatus, Ronnel Intia, Bryan Baynado, Ferdinand Garcia, Joselito Lagman, Ronnel Saranilla, Carl De Jesus, Fernan Borabo, Joyce Calago, Ruel Alcober, Carol Discutido, Fhiel Escribe, Lester Capayas, Ryan Cajimat, Christian Nuyda, Franc Almeranez, Linden Padilla, Sarah Fortadiz, Clyde Elduay, Francis Tambong, Lindy Vidal, Silvestre Furio, Cristina Angeles, Francisco Cruz, Marites Intila, Snezzy Abejuro, Dan Baloloy, Frankie Galedo, Mark Angelo Aguilar, Tristan Belezza, Dario Gruta, Gilbert Mendoza, Marvin Lalo, Unique Dela Cruz, Deney Ingente, Ian Barlizo, Melchor Serrano, Virgilio Perido, Derick Alcantara, Irish Jane Rafael, Michael Pocong, Wenceslao Santiago, Dhemie Abdon, James Gito, Nancy Garbin, Wencis Quiozon, Domingo Ibanita, James Manito, Norwilson Camba, Willy Anne Salud, Donald Rosin, James Ryan Paz, Paolo Pedro, Jay Marc Crispin, Radney Dimson
 * Special effects supervisor: Akiblas Flores Jr.
 * Special effects artists: Alejandro Loza, Ezekiel Gelisanga, Liza Bandola, Arvin Villarin, Hazel Tingzon, Louise Cegayle, Calvin Macapallag, Herbert Dimol, Mary Joy Ventanilla, Christopher Ramajo, Ilona Lardizabal, Moises Bautista, Dhel Abrio, Jed Blancas, Paolo Tariga, Edwin Mangalus, John Aguila, Pearl Bambao, Eloise Langcap, John Reb Garcia, Zedric Singco
 * CU/IB effects supervisor: Nelson Sambo
 * CU/IB effects artists: Adolfo Jr. Malubay, Grace Valenzuela, Katherine Nanca, Alemar Bolon, Helen Figuerras, Leonardo Marcelino, Alex Bagas, Ija Rosero, Marco Gibson, Axel Tacorda, Jilivieve Condino, Marie Antonette Yap, Che Reyes, John Ray Escobido, Meirylle Eduardo, Eden Alacar, John Raymond Navarro, Myla Ronquillo, Emilie Velasquez, Joji Ann Ramos, Ronald Ronquillo, Francis De Vera, Joven Milano, Sharleen Vega, Genrev Abugao, Julian Gelisanga, Tristan Gumarang, Gibson Marco, Julis Intas, Venus Dante
 * Digital ink and paint/Compositing supervisor: Erick Jhon Austria
 * Lead technical director: Arianne Turerrit
 * Technical directors: Aillen Via Fernandez, Jayson Sajonas, Carlo Fernandez, Jordan Rivera, Elmer Zamora, Justine Francis Andal, Fernando Endab, Mon Joseph Saez, Isagani Reyes, Pilsen Cayabyab, Jamie Roxanne Casal, Sherwin Castillo
 * Paint checkers: Donna Gallon, Jefferson Suque
 * Painters: Anna Theresa Tabalba, Hanna Bolado, Maria Corazon Desingco, Baltazar Masucol, James Robert Felecidario, Mark Tibi, Charles Derith, Jayveid Ilangos, Nikolai Gamit, Christian Del Vega, Jennifer Allyson Baylen, Nina Semana ,Christine Grace Mizal, Jerard Santos, Raphael Tinsay, Cyril Dullas, Jerome Masucol, Rosa Maria Jose, Dianne Karla Tequil, Jocelyn Abalo, Russel Asprer, Emmanuel Barcebal, Joel Porlage, Socorro Telentino, Gin Alvee Alvaro, John Lloyd Bajo, Sunshine Bantisil, Grace Garcia, Justino Allen Lim, Vlademir Angeles, Kevin Naval
 * Production manager: Joel De Leon
 * Production control associates: Allan Dela Cruz, Charles Pateña, Fritz Mengote, Meanne Antonio
 * Offline editor: Shylo Alcayaga
 * Technical supervisors: Emmanuel Palad, Khristian Domantay, Nathaniel Trinidad
 * Post production executive: Greg Emerson
 * Post producer: Kip Brown
 * Post production managers: Rebecca Sands Coutts, Marrisa Llano
 * Creative services producer: Lisa Hallbauer
 * Creative services assistant production managers: Charlie Carpenter, Emilly Dillard
 * Recording facilities: Bang Zoom! Studios, Pomann Sound NY
 * Recording machine operator: Jeff O. Collins
 * Track reader: Wilson Martinez
 * Supervising dialogue/ADR editor: Mark A. Keatts
 * Dialogue/ADR editors: David M. Cowan, Michael Garcia, Kelly Foley-Downs, John Reynolds, Patrick Foley, Fred Salinas, Darleen Stoker
 * Post production sound services: Advantage - Post Audio Services
 * Online editor: David Cowles
 * Assistant editors: Harrison T. Barth, Michele Beeson, Gabriel Gianola
 * Asset manager: Rachel Ryan
 * Manager-production: Abigail Overstreet
 * Pipeline associate producer: Karina Benesh
 * Pipeline engineer: Debbie Sleeper
 * Pipeline supervisor: Kevin "KP" Porterfield
 * Production support: Cher Bentley, Jenna Levine, Jeff Deckman, Tamara Miles, Eileen Goldstein, Niko Sumcad, Shelly Jacobs, Kira Tirimacco
 * Casting administration: Liz Carroll
 * Casting: Maria Millage
 * Production accountants: Chaz Murphy, Athena Wingate
 * Rights and clearances: Jake Baumgart, Katie Ward
 * Business and legal affairs: Leslie Ball, Denise Martinez, Leslie Chinchilla, Shanon Muir, Raymond Gonzalez, Iman Wilson
 * Operations: Lindsey Gui
 * Production supervision: Bobbie Page, Liz Marshall
 * Production management: Ed Adams
 * Executive in charge of production: Sammy Perlmutter

Release
Dates are in order of release:


 * United States: October 4, 2022 on Digital on Demand; October 7, 2022 at New York Comic Con; October 18, 2022 on DVD; October 14, 2022 at 7:00 pm on Cartoon Network; October 15, 2022 on HBO Max

Behind the scenes

 * Scooby says "Ruh-roh" twice.
 * Velma says "Jinkies" thrice.
 * Shaggy says "Zoinks" once.
 * The Mystery Machine's vanity plate is "GROOVY." When the Mystery Machine is rebuilt, Trevor changes it to "GLOOMY."
 * The unmaskings of old villains are shown from the Scooby-Doo, Where Are You! episodes "Spooky Space Kook," "A Clue for Scooby-Doo," "Bedlam in the Big Top," and "What a Night for a Knight."
 * This is the first piece of Scooby-Doo media that shows Velma as a lesbian, although there had already been an implication of it in the TV series Scooby-Doo! Mystery Incorporated, and James Gunn had intended her to be one in his draft for the live-action film Scooby-Doo.
 * The song during the opening credits is set to the tune of the theme song to the original TV series Scooby-Doo, Where Are You!
 * The guy at the grocery looks like from the Scooby-Doo, Where Are You! episode "Nowhere to Hyde."
 * The person outside the Scary Witch Shakes is dressed like the witch from the Scooby-Doo, Where Are You! episode "Which Witch is Which?"
 * Coco has drawings of the Creeper and the Space Kook on her cell walls.
 * The gang looks into Nefario's book the way they looked into a nondescript book in the Where Are You! episode "What a Night for a Knight."
 * Banana Split's Ice Cream Hour is a reference to the band The Banana Splits and their show, The Banana Splits Adventure Hour.
 * Yogi's Yoga is a reference to Yogi Bear.
 * Coco makes a joke about Goths 'R Us, which is a reference to the toy store Toys 'R Us.
 * When Scooby and Shaggy come to the rescue of their friends, Scooby breaks the fourth wall by referring to the fact the franchise is named after him.
 * After the inmates escape, Warden Collins breaks the fourth wall by telling the gang they don't have to worry because they're in a family movie.
 * Special thanks are given to Joe Ruby and Ken Spears, who had nothing to do with this movie, but did create the original series, Scooby-Doo, Where Are You!

Errors

 * The 10,000 Volt Ghost already happened, so it's odd how it's being redone as if it never happened before.
 * Fred implies that their first case happened in "What a Night for a Knight," when he said in that very same episode after discovering the abandoned suit of armor, "Well, gang, it looks like we're up to our armor plates in another mystery."
 * It's implied that Charlie was a costume worn by Sarah Jenkins, even though it was a real robot she had sabotaged.
 * The gang has connected all the villains' disguises to have been made by Coco even though some of the villains were known to have made their own costumes. It also funnily enough conflicts with Scooby-Doo! Team-Up #3, in which it was revealed that all the bad guys had been buying their costumes from a warehouse in Gotham City.
 * When Fred tells Daphne to open up the guestbook, she opens it up in the middle. Maybe it does take rocket science.

Marketing and promotion
The movie was screened at New York Comic Con on October 7, 2022.

Everlasting influence

 * On the October 8, 2022 episode of Saturday Night Live, it was referred to by Colin Jost during the Weekend Update segment.

Home availability

 * In the United Kingdom and Ireland:
 * October 17, 2022: Warner Home Video releases Trick or Treat, Scooby-Doo! on DVD.
 * In the United States:
 * October 18, 2022: Warner Home Video releases Trick or Treat, Scooby-Doo! on DVD.
 * In Canada:
 * October 18, 2022: Warner Home Video releases Trick or Treat, Scooby-Doo! on DVD.
 * In Australia:
 * October 19, 2022: Warner Home Video releases Trick or Treat, Scooby-Doo! on DVD.
 * In France:
 * October 25, 2022: Warner Home Video releases Trick or Treat, Scooby-Doo! on DVD.