User blog comment:Justice Avenger/Which villain you think should be added to The Light or the YJ Series?/@comment-5231580-20120626064905/@comment-1038387-20120629170215


 * Ma'alefa'ak/"Malefic" is J'onn's brother. He was the one used in Justice League: Doom.
 * Cay'an is a White Martian, the leader of a group of whites posing as green (and she posed as human)
 * D'Kay D'Razz is also a White Martian, introduced in Brightest Day.

The problem with Martian Manhunter is that other than Malefic, he doesn't really have persistent enemies. He hasn't had that many solo adventures (only backup features and short lived titles), and on top of that, he has lived in several cities, and worked under a variety of aliases (Bronze Wraith, Bloodwynd). He's arguably the only big DC hero without a Rogue's Gallery.