Metallo is in reality Roger Corben, who took on the identity of Metallo after his brother John had died. He did so with the aid of a criminal organization called SKULL, which transformed him into a cyborg. He then went to get revenge on Superman.
Metallo is in reality Roger Corben, who took on the identity of Metallo after his brother John had died. He did so with the aid of a criminal organization called SKULL, which transformed him into a cyborg. He then went to get revenge on Superman.