Mellleo is a clone of Weegee and Malleo, an evil experiment of Dr.Scientisteegee, though he ran away (yes,it is the 39482384792nd Dr.Scientisteegee experiments that runs away), but he didn't join The League of Weegees, he's just neutral. He got the powers of both them combined, but he's strong as Greegee. He has a lot of clones. Some Rumors (that can be true) say that he is a counterpart of Malleo in a unknown Universe.