Carl Midnight is a major antagonist turned anti-hero in The Assassin of Darkness. He was a member of the Black Heart Military Corps who served as Walter Steele, the head of the military's right hand man and had a rivalry with Connor Kramer. He assisted Walter in the assassination of Connor's family and later had half of his face disfigured in revenge, which left him seemingly dead. However, he survives barely but was brought back and imbused with the powers of a Dark Sider by The Dark Master. As the series progress he becomes the guardian of Sherry.