Mystery Inc. is summoned to investigate occurrences in a haunted villa, where a black knight terrorizes anybody who tries to get close to treasure hidden by the former owner of the building.
Frank Welker
as Scooby-Doo / Fred Jones (voice)
Matthew Lillard
as Shaggy Rogers (voice)
Grey DeLisle
as Daphne Blake (voice)
Kate Micucci
as Velma Dinkley (voice)
Colleen O'Shaughnessey
as Wanda (voice)
Jason Spisak
as Kyle (voice)
Phil Morris
as Adam / Treasure Hunter #1 (voice)
Sean Schemmel
as Charlie / Treasure Hunter #2 (voice)
