The Monkees (1966)

S02E18 Monstrous Monkee Mash

The Monkees embark on a mission to save Davy from the clutches of his girlfriend Lorelei (Arlene Martel) and her sinister companions, including Count Batula (Ron Masak), a werewolf (David Pearl), a mummy, and a creature reminiscent of Frankenstein, all residing in a haunted castle.