Character/DC
Kryptonian
Jer-Em first appeared in Action Comics #309 (1964-02), published by DC. 9 appearances are indexed across 6 series.
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.
Character history
Across the catalog
Who's Who: The Definitive Directory of the DC Universe
1985–1987
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