Also known as: Dr.ヘル
Doctor Hell is the main antagonist of the Mazinger Z Super Robot series, and the archenemy of Kabuto Juzou and Kabuto Kouji.
A brillant scientist and a derranged madman bent on conquering the world, Dr. Hell uses both an extensive series of hostile and very powerful Mechanical Beasts as well as a small cadre of evil lieutenants and legions of Cyborg soldiers he personally created to achieve this goal.