Erndine Ze-Da

• Also known as

Erndine Ze-Da escaped the Phantom Zone with a prisoner named Dr. Xadu when a south sea volcano exploded and opened a temporary gap in the Phantom Zone. They concocted a plan to trap Superboy in the Zone, but he became aware of their scheme and stranded them on the planet Exon. Years later, Erndine and Dr. Xadu, who had since married and acquired the secret of the cosmic power-grip, escaped from Exon and returned to Earth. Superman defeated them again, and placed them in separate cells on two different worlds.