Knowing what we know about the cinematic Justice League’s roster – Superman, Batman, Wonder Woman, Aquaman, Flash, Green Lantern, and Cyborg – it looks like we’re gonna get an all-killer-no-filler line up. But is that leaving something important on the table?
The big guns may be the most recognizable parts of the League, but the team’s “B-Listers” have always been its heart and soul. Even the Avengers had Hawkeye and Black Widow. Could the League find room for Firestorm, the Atom, or even someone like Martian Manhunter, who have all played important roles in the team despite not necessarily being marquee names?
That may be trying to pack too many characters into the team, but with two parts to tell their story, there’s plenty of space for cameos and guest appearances from some lesser known Leaguers.
Well, a movie appearance would certainly help that right along, wouldn’t it? The key here is to make sure he’s not just another Superman - sure, he has shape-shifting abilities on top of it all, but the super strength and flight sure looks familiar. So why not play up what J’onn used to really represent: the heart of the team. As a character who hopes so desperately that these larger-than-life beings can work together to create a world even greater than the one he so recently lost, J’onn can give you some unique perspective to a growing team. Not to mention, the special effects options of a Martian Manhunter finally cutting loose in the third act are an exciting prospect.
J'onn also has an ever-increasing profile thanks to his presence in the Supergirl series. And though that universe isn't connected to the world of the films, Martian Manhunter would be a great surprise member to throw in when Justice League: Part One lands in 2017.