Matt
Not an actual devil right? Not that it matters. He says he killed the actual devil, doesn't seem interested in going after any others.
I could put him on and he could explain it, but he's a tiny bit grumpy about me telling anyone and you're more likely to get less frustrating answers out of me. As far as I understand it, he's a non-physical being, something about special divine light created by God, and he needs a physical body to interact with people because otherwise people tend to die when they see and hear an angel's true form.