Wade Wilson (Earth-2999)

Wade Wilson is an army special forces officer that was diagnosed with cancer in inoperable locations (Brain, Lung, Liver, and Prostate). Advanced Idea Mechanics operated on him to test out new super soldiers by splicing several mutant and superhuman's DNA to his own, and after he escaped with his new powers, Wade became insane, becoming Deadpool, the Merc with a Mouth, who is convinced that for him to be a hero, he should work with the Bruce Wayne's Trinity