Dean
Dean and Martin burst into Wendy's room, the only person to have had serious contact with either him or Sam. She had kissed them both at random intervals. He was utterly convinced that she was the wraith; just like he was convinced that if he stepped on the cracks of the tiles, he would end up falling through them back into Hell.
But to his complete shock, the weird nurse from their first day was hovering over Wendy's prone body, her wrists slit. The nurse glanced up at him, her odd smile still firmly in place as she withdrew a skewer from Wendy's neck.
"Is this real?" Dean muttered. The nurse laughed gently, standing up. Her dark eyes glittered oddly.
"Oh, it's real sugar."