History
Soldier-turned-supervillain John Corben is Metallo, a Kryptonite powered cyborg who is an enemy of Superman. John Corben was a Sergeant working under General Sam Lane and having harbored a crush on his daughter Lois Lane, to which she spurned him. When Superman escaped from the military's custody, Corben enlisted in Doctor John Henry Irons's "Project Steel Soldier" despite risking the project's flaws while believing that stopping Superman in order to show his affections for Lois. Corben is outfitted with the Steel Soldier armor, under the supervision of Lex Luthor and General Lane. However, Corben's body is taken over by Brainiac and causing his heart to burst. Corben went to attack Superman before going into a rampage until he is defeated when Dr. read more
