Dr. Hell is a fictional character from the Japanese media franchise Mazinger Z, created by Go Nagai. He is portrayed as a villainous scientist who seeks to conquer the world using his army of mechanical monsters. Dr. Hell is known for his distinctive appearance, often depicted with a skull-like face and a menacing demeanor. In the series, Dr. Hell is the main antagonist, constantly battling the hero, Kouji Kabuto, who pilots the giant robot Mazinger Z. His character embodies themes of ambition and the dangers of unchecked scientific experimentation, making him a memorable figure in anime and manga history.