Jemm is a fictional alien character appearing in various comic book series published by DC Comics. He is an analogue of and occasional ally of Martian Manhunter.
Publication history
Jemm was created by Greg Potter and Gene Colan, and first appeared in Jemm, Son of Saturn #1 (September 1984).[1]
The first unofficial appearance of a Red Saturnian in DC Comics was Detective Comics #314 (April 1963) where he was a nameless alien criminal who was weakened by motor oil, enabling Martian Manhunter to defeat him.
According to Potter, Jemm was originally supposed to be Martian Manhunter's cousin. However, partway through developing the series, Potter was told by editor Janice Race that Martian Manhunter would reappear in Justice League of America.[2]