Martian Manhunter (DC Animated Universe)

J'onn was a founding member of the Justice League. He was the only member who constantly lived in the Watchtower; in one instance, he had been in space for 2 years without going back to Earth. Supported by Wonder Woman and Green Arrow, he temporarily resigned his commission to mingle with the people of Earth. In this time, he met a woman and married her.

He eventually returned to active duty during Darkseid's second invasion of Earth.

Trivia

 * J'onn J'onzz does not have dreams when he sleeps.
 * J'onn J'onzz loves Oreos.