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