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.
as Scooby-Doo / Fred Jones (voice)
as Shaggy Rogers (voice)
as Daphne Blake (voice)
as Velma Dinkley (voice)
as Wanda (voice)
as Kyle (voice)
as Adam / Treasure Hunter #1 (voice)
as Charlie / Treasure Hunter #2 (voice)
