Voltner (ボルトナー, Borutonā) is a Fullbringer. A former member of Xcution, he left the organization shortly before the beginning of the series due to conflict between him and Kūjo Ginjō. A former ally of Ryūga Sennaka before his death at the hands of Byakkō, he meets Hiroshi Shoujin and the two strike up a friendship, eventually becoming allies. In the Human World, Voltner hides his identity by disguising himself as a young, affluent businessman named Klaus von Dragohommen (クラウス·フォン·ドラゴホッメン, Kurausu fon Doragohommen).