Martin Schiller was a catatonic man whose mind could travel between realities.[2]
- Madman by Paul Neary was one of the stories published in Quality Communications' Warrior comics anthology alongside Marvelman and Warpsmith. Since some stories from Warrior were planned to take place in a shared universe (specifically Marvelman, V for Vendetta, Warpsmith and Axel Pressbutton; it is unknown if Madman was considered part of this universe by the editors and writers),[3] its setting, the "18th Existence of Earth", was used as a designation of Miracleman's home reality by The Appendix to the Handbook of the Marvel Universe. Eventually the Marvelman/Miracleman reality was designated Earth-82324. Although Madman is a creator-owned title and has no direct Marvel connections, the reality numbers presented there are acknowledged by the Appendix.