It's official (sort of): The Hulk is Catholic
It makes the assumption that multiple characters in DC and Marvel's worlds could be Catholic. While that's the case for the coolest teleporter around (Nightcrawler, obviously), the current "proof" that the Hulk and Bruce Wayne are practicing Catholics is a bit dicey. They cite the fact that Bruce Banner married Betty Ross in a church with a Catholic priest, as well as scene where he was holding rosary beads, as the main reasons he could be Catholic. Okay then.
Do you guys think of your favorite superheroes' religions?