The god of death and a close servant of Hades, who has fought against Athena's Saints since the ages of myth. He along with his twin brother Hypnos reside in Elysion and see to their god's ambitions. Thanatos, being the more impulsive of the brothers, was quick to attack Athena's Bronze Saints when they arrived in Elysion, deeming their trespass blasphemy. When Thanatos was bruised by Pegasus Seiya, he was personally offended and even went to the lengths of trying to kill the Saint's sister. This did however backfire as Seiya rose to a new level of power, resurrecting his God Cloth and soon defeated the god.