K'al J'onzz

K'al J'onzz (Born 2037) is a half-White half Green Martian who lives on Earth and acts as Metropolis' protector as The Martian Manhunter after Superman's absence from the City of Tomorrow.

Childhood on Mars
After a incident on Earth that left J'onn extensively burnt and resulted in the deaths of several civilians, J'onn ashamed left the Justice League and returned to the wasteland that was Mars.

The wounded martian wandering for years alone on the planet, barely surviving alone. One day, he was attacked by a giant Martian Sand Wraith, which due to his lasting wounds almost killed him had he not retreated to a cave. Having passed out, he awoke to find familiar but startling faces looking down on him. They were White Martians, a small group of which that had survived and lived on the planet. Initially scared, J'onn soon realized that they were not like the White's he knew, they wanted peace, and to be alone like he did. Deciding to stay with them, J'onn had fallen in love with a female White known as Sy'rann. The two eventually having a child J'onn called K'al, in honor of an old friend.

J'onzz became a leader, as Mars grew again with life. Alien refugees from both Earth and space flocking to the peaceful community to start again. K'al, he wanted more than just peace. Inspired by the old stories of the justice league and of the Martian Manhunter, he decided to take his own venture to Earth when he felt he was ready. Despite the objections from his parents, K'al had made up his mind, and he took the persona of Martian Manhunter back with him to Earth.