J'onn J'onzz (Earth-9107)

J'onn J'onzz is the Martian Manhunter, one of the last survivors of the planet Mars who came to Earth in search of justice and peace.

Several decades ago, J'onn's own brother, Ma'alefa'ak, had gone insane and created a superweapon that sterilized Mars into it's current state, wiping out all life other than himself, J'onn, and their niece M'gann. The two went to Earth to capture the fleeing madman, eventually making a life for themselves.

He still misses his lost wife and children, but he's found relative peace on Earth.