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
Christopher Attadia
Teen Male In Car
Jordana Largy
Teen Female In Car
Leah James
Prudence Prufrock
David Hurtubise
Mr. Pupperman
Dee Jay Jackson
Bus Driver