An evil sorceress transports the gang back to the age of chivalrous knights, spell-casting wizards, and fire-breathing dragons.
Grey DeLisle
as Daphne Blake (voice)
Stephen Stanton
as Peanut Vendor (voice)
Kari Wahlgren
as Female Peasent (voice)
Frank Welker
as Scooby-Doo / Fred Jones / Monster (voice)
Kate Micucci
as Velma Dinkley / Sandi (voice)
Matthew Lillard
as Shaggy Rogers (voice)
Nick Frost
as Merlin (voice)
Greg Ellis
as Herald / Herman Ellinger / British Passenger (voice)
Jason Isaacs
as King Arthur Pendragon (voice)
Spike Brandt
as Mr. HB (voice)
Trevor Devall
as Man Cat (voice)
Fred Tatasciore
as Black Knight (voice)
