The Mystery of Willoughby Castle
- ປີ: 1979
- ປະເທດ: United States of America
- ປະເພດ: Family, Mystery
- ສະຕູດິໂອ: Quadrus Production, Quadrus Communications
- ຄຳ ສຳ ຄັນ:
- ຜູ້ ອຳ ນວຍການ: Luisa Morell
- ຫລໍ່: Kevin Rodell, Luisa Morell, William Lowry, Ned York, Martha Webster
