Jer-Em

• Also known as

Jer-Em was a religious fanatic who was sentenced to 30 Kryptonian sun-cycles (41.1 Earth years) in the Phantom Zone for wiping out the super-powers of the people of Argo City by guiding it back toward a red sun, leaving the residents stranded in their city in space. Jer-Em was among those freed from the Zone when Quex-Ul was manipulated into building and activating a crude Phantom Zone projector. He purposely exposed himself to green kryptonite in order to enter the Kryptonian afterlife.