Nightmare was 500 years old. He was a very respectful, romantic and gallant King. He was very charming. He often wore formal clothes, fit for a King, with white gloves and a purple cloak that hid his tentacles behind his back. He had beautiful teal eyes, but his right eye was hidden by the strange black liquid on him. His skin was black. He makes gestures of gallantry and had a black castle in Dreamtale. He often loved to hunt for prey.