Metallo refers to several characters:
- For the mercenary turned into Metallo by Project Cadmus, see John Corben.
- For his partner in the role of Metallo, originally a Cadmus scientist, see Gilcrist.
- For the subject of the "Metallo Procedure", see Metallo (National City University).
- For the terrorist who resurrected during the "Metallo Procedure", see Otis Graves.
- For the metallic servant of the Nazis from Earth-X, see Metallo (Earth-X).
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