Scooby-Doo! The Mystery Begins— Full Cast

Nick Palatas

as Shaggy

Hayley Kiyoko

as Velma

Frank Welker

as Scooby-Doo (voice)

Robbie Amell

as Fred

Kate Melton

as Daphne

Benita Ha

as Mom

Shawn Macdonald

as Principal Deedle

C. Ernst Harth

as Janitor

Garry Chalk

as Vice Principal Grimes

Kurt Evans

as Dad

Kira Clavell

as Reporter

Lorena Gale

as Librarian

Christopher Attadia

as Teen Male In Car

Jordana Largy

as Teen Female In Car

Leah James

as Prudence Prufrock