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.
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 , Matthew Lillard , Grey DeLisle
Rick Morales
Warner Bros. Animation ,
as Scooby-Doo / Fred Jones (voice)
as Shaggy Rogers (voice)
as Daphne Blake (voice)