The greatest mystery is how it all began.
Unjustly accused of staging a spooky practical joke complete with ghosts, Daphne, Velma, Fred and Shaggy are suspended from Coolsville High. To clear their names, they team up to solve the supernatural mystery…and head straight into nonstop laughs and adventure.
Nick Palatas
Shaggy
Hayley Kiyoko
Velma
Frank Welker
Scooby-Doo (voice)
Robbie Amell
Fred
Kate Melton
Daphne
Benita Ha
Mom
Shawn Macdonald
Principal Deedle
C. Ernst Harth
Janitor
Garry Chalk
Vice Principal Grimes
Kurt Evans
Dad
Kira Clavell
Reporter
Lorena Gale
Librarian
