Scooby-Doo Meets Fillmore

''Scooby-Doo! Meets Fillmore'' is a direct-to-video crossover movie between Warner Bros' Scooby-Doo and Disney's Fillmore.

Plot
When a monster attacks X Middle School during Homecoming week, Scooby-Doo and The Mystery Inc. Gang teams up with Cornelius Fillmore, Ingrid Third and the rest of the X Middle School Safety Patrol to get to the bottom of this mystery and save Homecoming week.

Cast

 * Frank Welker as Scooby-Doo and Fred Jones
 * Matthew Lillard as Shaggy Rogers
 * Amanda Seyfried as Daphne Blake
 * Kate Micucci as Velma Dinkley
 * Lex Lumpkin as Cornelius C. Fillmore
 * Tara Strong as Ingrid Third
 * Horatio Sanz as Horatio Vallejo
 * Lauren Tom as Karen Tehama
 * Danny Tamberelli as Joseph Anza
 * Kyle Sullivan as Danny O'Farrell
 * Wendie Malick as Dawn S. Folsom
 * Jeff Probst as Vice Principal Raycliff
 * TBA as Unnamed Monster
 * Mae Whitman as TBA
 * Marcus T. Paulk as Sonny Lombard
 * Lynsey Bartilson as Malika Stanyan
 * Eli Marienthal as Derek Minna
 * Debi Derryberry as Cheri Shotwell
 * Brian George as Librarian Lendrum

Trivia

 * This is the first movie to crossover with two properties from Warner Bros. and Disney. The two studios came to an agreement to do this movie.
 * The cast from the original Fillmore! show return to respire their roles, except for Orlando Brown who portrayed the title character due to his legal issues. So Lex Lumpkin from Nickelodeon's All That will replace him as the new voice of Fillmore for the movie.
 * This movie features three cast members of Nickelodeon's All That from three different generations. Danny Tamberelli from the original cast (1994-2000), Kyle Sullivan from the relaunch cast (2002-2005), and Lex Lumpkin from the revival cast (2019-2020).
 * Grey Griffin has been fired as the voice of Daphne and the Scooby-Doo franchise due to controversy of her threatening to blacklist YouTube creator, Eagan Tilghman over a Scooby-Doo fan made video entitled "Springtrapped" along with past controversial tweets surrounding the voice actress come to light. She will be replaced by Amanda Seyfried who previously voiced the character in the 2020 film "Scoob!" for this movie and the rest of the franchise.
 * Characters from both franchises will retain their original and current design for this movie.
 * This is the first project involving Fillmore! since 2004.
 * This movie will explore Fillmore and Ingrid's relationship into becoming romantic. This was inspired by one of the episodes from the cancelled third season of Fillmore!.
 * This is the eighth Scooby-Doo movie to be a crossover after "Scooby-Doo! Mask of the Blue Falcon", "Scooby-Doo! WrestleMania Mystery", "Scooby-Doo! and Kiss: Rock and Roll Mystery", "Scooby-Doo! and WWE: Curse of the Speed Demon", "Scooby-Doo! & Batman: The Brave and the Bold", "Scoob!", and "Straight Outta Nowhere: Scooby-Doo! Meets Courage the Cowardly Dog".