History of character is unknown.
- Doctor Demon is based on the MLJ Comics character of the same name. That Doctor Demon was a male ex-Nazi scientist with a metal left arm, who served Shiwan Khan in his war againt the Shadow. He first appeared in Shadow #4.
- 3 Appearances of Doctor Demon (New Earth)
- 2 Images featuring Doctor Demon (New Earth)
- Quotations by or about Doctor Demon (New Earth)
- Character Gallery: Doctor Demon (New Earth)