Anon speculated: “I know who No Man is! That’s Lucifer!”
I thought so also, after my full panic when I first saw him. He is so perfect, he tripped my Uncanny Valley alarm and I bailed. So perfect, he’s terrifying. It took me a long time before I could look at his face. He tried having no face for a while. But was so perfect at that, the effect was worse. So he took on a perfect replica of an imperfect face. That he chose the face of the Good Guy Lucifer meme had me in stitches for an hour. That worked and I am able to speak face to face with him now.
I asked him if he chose that face because he was hiding in plain sight. “No. I’m not Lucifer. I’m No Man, just as you tell to others.” I know he pulled a fast one with that statement, but I don’t know any myths about him other that the scant clues he has told me.