I was watching Vampire hunter d: bloodlust, and I noticed something worth mentioning. for those who don't know what vampire hunter is, imagine Castlevania set in a post-apocalyptic future where vampires rule the world and monsters run amok, and the protagonist is basically Alucard with a cyborg horse. in the movie, there's this guy, Grove, who is this comatose-looking man in this band of vampire hunters. at some point in the movie, he uses this drug that sends him in some sort of sleeping state where he summons a spectral looking version of himself, who float around, smiling, shooting out light beams in the same fashion of Londor Angels, like identical. I don't know if it was the inspiration behind the Angels, but considering Bloodborne overall design seems inspired by Vampire hunter D, I think is a possibility.