Count von Bluchenworten
Count von Bluchenworten was a ghost who was an "ectoplasm vampire," meaning he could absorb the ectoplasm of other ghosts to empower himself. The Count fed upon the ghosts of Bluchenworten, ruining their tourist industry and leading them to call in the Ghostbusters. While the Count was nearly able to come back to life by absorbing Slimer's copious amounts of ectoplasm, he was destroyed by the Ghostbusters when they created a device that generated simulated sunlight. Count von Bluchenworten also had the ability to transform into a shapeless, black alternate form immune to the Ghostbusters' weapons. He was assisted by the supernatural bats Testricon and Lucifus.