Kathy
Kathy was Buffy's roomate. She seemed to be the all-american student. She listened to Cher, Celine Dion, kept everything in order, and labeled all her food. She and Buffy though began to get on eachother's nerves by doing things that the other one hated. Kathy though found Buffy's arsenal chest and mentioned nothing of it. She and Buffy just so happened to be having the same nightmares which was that a red faced demon was sucking air out of their body. Buffy noticed that Kathy's toenails kept growing even though they were cut off. Buffy then knew for sure that Kathy was a demon and went to fight her. Buffy ripped off Kathy's face showing her true form but Buffy couldn't beat her because Kathy had been sucking Buffy's life out of her during her sleep so that she would become totally human and wouldn't be found by the people from her real world who would come to get her and bring her back. Giles performed a spell that would return Buffy's life back to her and it worked. Now that Kathy had no human life in her she was found by the natives of her land and was forced to come back home.