J'onn J'onzz (Earth-1: Post-Crisis)

"Some call me the Martian Manhunter."

- Calvin Swanwick

Martian Manhunter is a member of the Justice League. Among Humans, he poses as Calvin Swanwick, a Lieutenant General in the United States Army and the Secretary of Defense.

Steppenwolf's Invasion
After Kal-El's death at the hands of Doomsday, Martian posed as Kal's adoptive mother Martha Kent to help a grieving Lois Lane. Later, after the Justice League had defeated Steppenwolf, Martian met with Bruce Wayne, warning him about Darkseid's quest for the Anti-Life Equation and offering his help.

Powers

 * Green Martian Physiology: Swanwick has Green Martian powers, however, he rarely uses them in order to prevent being exposed to the world.
 * Fight: Swanwick was shown to fly to Bruce Wayne's lake house when he warns him about Uxas' quest for the Anti-Life Equation.
 * Shape-Shifting: Swanwick is able to conceal his identity by shape-shifting into Human appearance.

Abilities

 * Leadership/Expert Tactician: As a military general, Swanwick has had experiences over making sharp decisions and leading a large group of soldiers.

Current Equipment

 * Martian Manhunter Suit: Swanwick wears a black and red suit while operating as the Martian Manhunter.