The Wonder Twins
The Wonder Twins first appeared on The All-New Super Friends Hour cartoon series, and went on to appear in several subsequent shows featuring the Super Friends. Zan and Jayne are humanoid aliens from the planet Exxor/Exor, and were the Justice League's teen sidekicks. Unlike their predecessor, Wendy and Marvin, Zan and Jayne had actual superpowers. They were subsequently incorporated into the comic books where they received more detailed origins and enhanced powers.