The Zod Trio, on Earth, as they appear in Superman II. From left to right: Ursa, Zod, Non.
The Zod Trio refers to a trio of Kryptonian villains, who were imprisoned in the Phantom Zone. The group consists of General Zod, who had attempted a coup against the Kryptonian Council prior to the destruction of the planet, and his two followers, or disciples, Ursa and Non (who have both been known by different names at different times).
In the Pocket Universe, his followers are Zaora and Quex-Ul.