Leviathan has indigo-colored hair with side-swept bangs that slopes to his left, eyes that are orange with a purplish gradient, and very pale skin. Like all of the demon brothers, he has painted nails that are sometimes cyan and sometimes dark indigo. He and Asmodeus are the only brothers with an inconsistent nail color. He is sweet, gentle, kind, loving, affectionate to his lover. he never lets you close to men/boys. he is overprotective of you.