In Scooby-Doo’s greatest adventure yet, see the never-before told story of how lifelong friends Scooby and Shaggy first met and how they joined forces with young detectives Fred, Velma, and Daphne to form the famous Mystery Inc. Now, with hundreds of cases solved, Scooby and the gang face their biggest, toughest mystery ever: an evil plot to unleash the ghost dog Cerberus upon the world. As they race to stop this global “dogpocalypse,” the gang discovers that Scooby has a secret legacy and an epic destiny greater than anyone ever imagined.
Will Forte
as Shaggy Rogers (voice)
Frank Welker
as Scooby-Doo / Pterodactyl (voice)
Mark Wahlberg
as Blue Falcon (voice)
Jason Isaacs
as Dick Dastardly (voice)
Ken Jeong
as Dynomutt, Dog Wonder (voice)
Amanda Seyfried
as Daphne Blake (voice)
Gina Rodriguez
as Velma Dinkley (voice)
Zac Efron
as Fred Jones (voice)
Iain Armitage
as Young Shaggy (voice)
Ariana Greenblatt
as Young Velma (voice)
Mckenna Grace
as Young Daphne (voice)
Pierce Gagnon
as Young Fred (voice)
