Cast
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)
Ted Barton
Mayor Saunders / Sir Lancelot (voice)
Stephen Stanton
Peanut Vendor (voice)
Kari Wahlgren
Female Peasent (voice)
Fred Tatasciore
Black Knight (voice)
Trevor Devall
Man Cat (voice)
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