General Zod
Silver Age
Dru-Zod is a megalomaniacal Kryptonian and the leader of Krypton's military forces. When Krypton's space program was abolished after Jax-Ur's destruction of the inhabited moon Wegthor, Zod tried to take over Krypton using an army of robotic duplicates of himself, all bearing a resemblance to Bizarro. He is sentenced to exile in the Phantom Zone for 40 years for his crimes. In the present, Superman releases Zod after learning that he has already served his sentence, but is forced to return him to the Zone after he attempts to conquer Earth.
Interim Zods: 1985–2005
!General Zod in [The Adventures of Superman) #589 (April 2001). Art by Duncan Rouleau and Marlo Alquiza.](//upload.wikimedia.org/wikipedia/en/thumb/7/74/GeneralZodRtK.jpg/250px-GeneralZodRtK.jpg)
Interim Zods: 1985–2005
The first Zod to be introduced following Crisis on Infinite Earths is the Zod of a so-called "pocket universe" resembling pre-Crisis continuity; this allowed for a "Kryptonian" Zod to be introduced while maintaining Superman's status as the last of his race in the universe proper. This Zod's universe is created by the Time Trapper. Zod (along with companions Quex-Ul and Zaora) devastates the Earth of that universe following the death of its Superboy, despite the efforts of a Supergirl) created by that world's heroic Lex Luthor. The survivors of this world manage to contact the Superman of the main universe to help them, and he is able to take away the powers of the three super-criminals with gold kryptonite; since he is not from that universe, the kryptonite of that reality has no effect on him.