The Martian Manhunter, aka J’onn J’onzz
Voiced By: Dorian Harewood
First Appearance: "The Joining, Part 1"
Position: Hero, Member of the Justice League
Bio: A Martian, J’onn J’onns came to Earth in an attempt to prevent
The Joining from destroying it. While undercover for the majority of his stay, he eventually joined forces with Batman to destroy the
Joining once and for all.
After the global threat was eliminated, J’onn later returned to
Batman. Here J’onn transported them to a space station where Batman was introduced to a new "league" of heroes. This league, consisting of Green Arrow, Hawkman, Green Lantern, The Flash, J’onn and now
Batman, is dedicated to saving the Earth against anymore global threats.