General Zod is a fictional character from the Superman comics published by DC Comics. He has also appeared in other Superman media spin-offs. Zod is one of Superman's more prominent arch enemies. The Silver Age Zod As he was first portrayed in Superman comics during the period known as the "Silver Age of Comic Books", Zod was one of a number of Kryptonian villains trapped in the Phantom Zone, who would occasionally escape and target Superman. He first appeared in Adventure Comics #283 (April 1961). His full Kryptonian name was Dru-Zod. He was often portrayed as a megalomaniacal bald man, and some think he was based on Nazi fanatics, espousing purity and aggression for Kryptonians. In one adventure, Zod and a number of Kryptonian criminals escaped the zone and came to Earth, disguising themselves like Superman (whom they had observed) and using their powers to benefit mankind, like him. The reason for this was that they had a common enemy with the Man of Steel. Superman tricked them into going back into the Phantom Zone by travelling there with them and using a fragment of Jewel Kryptonite to escape in the nick of time. Later versions of Zod http://en.wikipedia.org/wiki/General_Zod