hades (saint seiya)
The final antagonist of the original Saint Seiya anime and manga. The God of the Underworld and ruler of the Specters.
He manifests once every 243 years by possessing the body of the purest human alive in order to engage Athena and her Saints in the Holy War.
He views humans as arrogant creatures, detrimental to the Earth and its other inhabitants so he wishes to exterminate them all by blocking out the sun.
His most recent host was Andromeda Shun. While in said host's body, he bears: pale skin, long red hair, blue eyes and a purple robe.
In his true godly form he is quite tall, standing at 6'2". His hair is jet black. He is clad in a black set of armor with multiple pairs of wings. He wields a sword in battle. His face changes very little. His appearance invokes that of the fallen angel Lucifer.
In the previous Holy War, his host was a boy named Alone.