Hades

Hades is an Olympian. His brothers (Zeus and Poseidon) and himself divided the creation into thirds. Each one claimed a portion for there own, Hades took the Underworld.  Once someone entered Hades' land, they didn't come back. This did not include Heracles and Odysseus.  If a mortal were to kneel before Hades, it was pure justice.  Hades was very greedy.