This article contains fan theories about the identity of Bloody Face. It is separate to avoid contaminating the main page with spoilers and speculation. It is subjective.
Bloody Face Suspects
Kit Walker: Kit Walker is being confined at Briarcliff for being the serial killer "Bloody Face". It remains uncertain whether he is guilty or if, as he claims, it is the work of the aliens as yet seen only from his POV. He confesses to something big in "I am Ann Frank: Part 2", the same episode where Bloody Face is unmasked.
Arthur Arden: Bloody Face continues to kill even as Kit is confined and the sadistic doctor, with a history of abusing and perhaps killing prostitutes, seems a likely alternative.
Grace - Citing similar eyes this is a pet theory among fans.
Extraterrestrials - It all began with the purported abduction of Kit and Alma Walker.
A Demon - If there's one there may be two. Could we have a possession epidemic on our hands?