Space Phantom

Space Phantom is Immortus's ghostly lieutenant of the realm of Limbo. This mutated ghost can shapeshift himself into anything, be it human, alien, or superperson, and then shunt the intended victim into Limbo where Immortus can insepct to see if they are useful to his plans of timestream domination. However, while Space Phantom claims to be loyal to Immortus and the Organization, he really hates his bosses, and wants nothing more than to conquer Earth himself without Immortus there to order him around. In fact, the Enchantress and Executioner's scheme to break up the Avengers by controlling Hulk through the false Bruce Banner was actually Space Phantom's scheme, the purpose of which he wanted the Avengers out of the way so that he could take over Earth and get rid of his boss in the process. However, Loki got wind of this plan and sent Enchantress and Executioner to knock him out, hijack his plot and tweak it a bit so as to fit Loki's ultimate plan.

Right now, Immortus is furious at Space Phantom for trying to disobey him, and is now thinking of a way to keep the alien's services to him, and yet not keep him around anymore. Whatever Immortus has in store for Space Phantom, it can't be good for the Society and the Organization.