Scooby-Doo, Where Are You! (1969)

S1E11 A Gaggle of Galloping Ghosts

As the gang journeys toward Frankenstein's castle, they stop by a mysterious gypsy seer who cautions them against continuing their adventure. Disregarding her ominous advice, they press on. Chaos ensues when Daphne is captured, and the group soon finds themselves ensnared by a fearsome trio of creatures lurking within the castle's dark corridors.