Pesadelo is an old being, known as a 'manifestation'. He had taken a physical form and developed a conscious over the course of time. He has come to have a distrust of humans, due to what they did to him and his little brother Komos. Pesadelo typically stays in human form. In his human form he is tall and pale, with long, jet-black hair. He has serpentine eyes, his right eye is blind, but his left is violet colored, and he also has a forked tongue.