|Real name:||John Corben|
|Affiliations:||Kingpin, Green Goblin, Sinister Six|
|Rogue of:||Superman, Justice League|
|Abilities:||Super strength and nearly invulnerable|
|Weaponry:||Kryptonite power source|
John Corben was a mercenary and hitman who became the cyborg Metallo
John Corben was originally a top-tier mercenary. He was hired by the Kingpin and worked alongside the Sinister Six to steal the Lexo-Skel 3000 from LexCorp. Corben mounted the Lexo-Skel himself and engaged the Justice League and the X-Men in a raging fight, ending when the heroes tore the suit apart before it exploded.
Even though Corben escaped from the suit, the explosion had knocked him into a coma and his arms and legs were severely injured from the blast. Corben spent months of physiotherapy at New York General Hospital before he will be transfer into incarceration. He was sprung by the Green Goblin and offered the chance to have retaliation on Superman.