When a haunted house opens to the public, the Scooby gang investigates, not only to locate a treasure left by the house's prospector-owner, but to solve the mystery behind a legendary "Black Knight" who keeps visitors away.
Grey Griffin
Nanni Baldini
Matthew Lillard
Kate Micucci
Phil Morris
Sean Schemmel
Colleen O'shaughnessey
Jason Spisak
Frank Welker
Rick Morales
