Master Pandemonium is a supervillain in the Marvel comics.
He was originally an actor who lost an arm in a car crash, and made a pact with Mephisto to regain his limb. Mephisto instead took the man's other three limbs, then replaced them all with demonic grafts.
He was also given a hole in his chest in the shape of an inverted five-pointed star, and the ability to survive despite this hole in his chest.
He was also given the ability to command the demons inside him.