Mark Rein·Hagen.

comics artist · writer

United States, Born 1964

In short

Mark Rein-Hagen (born 1964), stylized as Mark Rein•Hagen, is an American role-playing, card, video and board game designer best known as the creator of Vampire: The Masquerade and its associated World of Darkness games. Along with Jonathan Tweet, he is also one of the original two designers of Ars Magica.