Hook is a fan-made antagonist in A:DI.
Hook looks a lot like Photo-Negative Mickey, except his entire body is split into segments. The parts are only his head, without ears, his arms, and his legs. The parts hang from the ceiling by hooks from the ceiling. His face is a wide smile with large, white eyes.
Hook only appears when the power is shut off. He can appear hanging from the left, right and front of the room. If he appears you need to flash your light at him. When the light flickers, that signifies that he is gone. If you fail to do this he will jumpscare you.
*The idea was based off of a hallucination like The Butcher.