Count Michael Zeppelin (ミヒャエル・ゼッペリン伯爵, Mihyaeru Zepperin hakushaku) is the leader of the RKS, succeeding Rosenkreuz, and one of the main antagonists of Rosenkreuzstilette. He is the adoptive father of Zorne Zeppelin and biological father of Iris Zeppelin. An authority figure on magical research, he was once a kind man whom everyone looked up to like a father. When persecution from the Holy Empire began once more, he became a vampire and commanded Freudia Neuwahl to lead a rebellion against the Empire in their attempt to destroy it.