Metallo was a cybernetic soldier in service of the Nazi Party, powered by Green Kryptonite. He was brought to Earth-1 by the Nazis in order to help pacify Supergirl and keep the other heroes in check as well. Metallo captured Felicity Smoak and Iris West, bringing them to his leader, Dark Arrow. Metallo was later overwhelmed by the combined forces of Team Arrow, Team Flash, and the Legends and destroyed for good.
- Cybernetic Enhancement
- This version of the character is exclusive to the continuity of the television series Arrow, its tie-in comic book series, and its related television series. It is an adaptation of Metallo. The original character was created by Robert Bernstein and Al Plastino and first appeared in Action Comics #252.
- John Corben was portrayed by Frederick Schmidt.
- 3 Appearances of John Corben (Arrow: Earth-X)
- 1 Images featuring John Corben (Arrow: Earth-X)
- Quotations by or about John Corben (Arrow: Earth-X)
- Character Gallery: John Corben (Arrow: Earth-X)