Cast
- Matthew LillardShaggy Rogers (voice)
- Frank WelkerScooby-Doo / Fred Jones / Monster (voice)
- Grey DeLisleDaphne Blake (voice)
- Kate MicucciVelma Dinkley / Sandi (voice)
- Jason IsaacsKing Arthur Pendragon (voice)
- Nick FrostMerlin (voice)
- Greg EllisHerald / Herman Ellinger / British Passenger (voice)
- Spike BrandtMr. HB (voice)
- Ted BartonMayor Saunders / Sir Lancelot (voice)
- Stephen StantonPeanut Vendor (voice)
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