Hades from ‘Hercules’
Zeus, king of the gods, assigned every god it their role in Greek mythology. You can understand why Hades would be mad that all the other gods get to live on Mount Olympus, and he’s stuck watching over the underworld for eternity. When Hades makes a deal, he keeps it: Meg gets hurt, and Hercules gets his strength back. When Hercules makes a deal (that he’ll stay in the underworld forever) he immediately breaks it and punches Hades in the face. That’s just not cool.