Gemini Saga

Gemini Saga, also known as Pope Ares, is the Gold Saint in the constellation Gemini in Saint Seiya (Sanctuary Arc). He is Kanon's twin brother. Saga is often described by other characters as someone with the kindness of an angel but with the darkness of a demon. This ambivalence ended up creating a split personality: a good Saga that was extremely loyal to Athena, and an evil one that keeps control of the body. When it takes control of Saga's body, his hair turns from blond to jet-black (the color schemes were altered for the anime, in which Saga's normally blue hair turned light grey). ...