Ainz Ooal Gown has an appearance of a Lich, an undead skeleton creature devoid of skin and flesh. He wears an elaborate, jet-black academic gown adorned with gold and violet edges. He has a dark red glow inside the empty eye sockets, and a dark halo-like object glimmered behind its head.
In his dark warrior persona, he wear a fully black body armor with purple and golden markings. He has a red cape on his back with two large swords.