I can assure you that Nightcrawler wont be in this movie, and that Azazel is only there probably as a public face as probably the guy who created the Hellfire Club.
Its quiet clever really, Azazel in mythology is a demoned, a demon comes from bad place, hellfire club. I think people are really looking to hard into it. I think all Azazel will be is someone who brings together the founding members of the hellfire club.