The movie is about the Mystery Gang and Blue Falcon trying to stop Dick Dastardly from opening the Underworld and releasing Cerberus.
Scoob! was released digitally via video on demand on May 15, 2020. It was initially set to play in theaters, but the theatrical release was canceled in response to the COVID-19 pandemic. It recieved mixed reviews from critics.
Mark Wahlberg as Brian Crown / Blue Falcon, the original Blue Falcon's son and successor. Crown is Wahlberg's first voice acting role, with the actor previously only performing live-action roles.
Jason Isaacs as Dick Dastardly, a criminal mastermind plotting to obtain treasure from the Greek underworld and rescue his dog sidekick Muttley
Frank Welker as Scooby-Doo, a talking Great Dane who was adopted by Shaggy as a child and the mascot of Mystery Inc.
Welker is the only current voice cast member from the franchise to reprise his role for the film, and also provides the vocal effects of the pterodactyl.
Don Messick provides Muttley's laughs, as well as the Spooky Space Kook, via archive recordings
Fred Tatasciore as Cerberus, the giant three-headed ghost dog that guards the Greek underworld
Justina Machado as Jamie Rivera, who calls Mystery Inc. to another mystery
John McDaniel as Hal Murphy
Pam Coats as Mrs Rogers, the mother of Shaggy
Adam Sztykiel as Officer Casey, a police officer who investigates stolen items at the Rigby House. He is named after the late Casey Kasem, the original voice of Shaggy.
Alex Kaufman as Officer North, a police officer who investigates stolen items at the Rigby House. She is named after the late Heather North, the second voice of Daphne.
Vanara Taing as Dusty/Baby Rotten
Sarah Lancia as Dispatcher Stevens, a police dispatcher. She is named after Pat Stevens, the second voice of Velma.
In June 2021, Cervone said that a follow-up to the movie was in development.
On December 22, 2021, HBO Max released a sizzle reel featuring a first look at a Christmas sequel movie, titled Scoob! Holiday Haunt, which was set to be released on the service in December 2022. The movie takes place after the events of the first movie, with Welker and the adult actors from the previous movie reprising their roles while Cervone returned to write the movie with Paul Dini as well to produce the project. The movie was co-directed by Bill Haller and Michael Kurinsky and had a production budget of $40 million. On August 2, 2022, Warner Bros. Discovery (WBD) canceled its release, citing cost-cutting measures and a refocus on theatrical movies rather than creating projects for streaming. Tony Cervone would go on to say on the same day that the project was "practically finished". Later that month, it was reported that the movie would still be finished, even though Warner Bros. Discovery had no plans to release it. The movie was finally finished on November 4, 2022.