Fan Casting Malefic in Martian Manhunter

J'onn's twin brother, who he believed to be dead. Long ago, Ma'alefa'ak had been accused of mind-violating, causing the Martian council to condemn him by withdrawing his telepathy. In response, Malefic created and unleashed a plague that wiped out much of Mars. Today, even more tormented than before, he has a very clear goal of annihilating any Martians left on Earth.