We don't have a biography for John Corben / Metallo yet. Hang in there, or go ahead and contribute one.
Appearances
Supergirl
Guest cast, played by Frederick Schmidt
- Episode 2x01: The Adventures of Supergirl (Oct 10, 2016)
- Episode 2x02: The Last Children of Krypton (Oct 17, 2016)
- Episode 2x12: Luthors (Feb 13, 2017)