ウリエル

As one of the four elite archangels known as Seraphs, Uriel bears the name "The Flame of God". Though his whereabouts since the Divine Calamity have been shrouded in fog, he has already joined the ranks of those maddened. He appears to display a particular obsession with Raziel, though his true intentions remain unknown. Regardless of what his outside appearance may suggest, there is naught but simmering embers left of his old self within his soul. Immune to any and all attempts at rational communication, he is driven solely by his unquenchable desire to hunt and kill- the only ones to make Uriel stay his hand would be those he pledged devotion to. [Source: MangaGamer]