Peter New

as Jay

Frank Welker

as Fred Jones / Scooby-Doo (voice)

Grey DeLisle

as Daphne Blake (voice)

Kate Micucci

as Velma Dinkley (voice)

Matthew Lillard

as Shaggy Rogers (voice)

Dee Bradley Baker

as Phantasm (voice)

Eric Bauza

as Cousin Slicker (voice)