Counting down the five best villians to take on Batman and Superman
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Sgt. John Corben may very well become the latest military role on Mulvey's IMDB entry. When a piece of Kryptonite lodges itself in his LexCorp battlesuit, Corben has no choice but to become part-man and part-machine in order to survive. As a cyborg powered by the one substance known to cripple Superman, Metallo poses the kind of threat that would require Clark Kent to tag someone else in to handle. Enter: Batman. Metallo's ties to Lex Luthor also means that if Mulvey signs on as this mechanical menace, Cranston could still bust out a Bic and sign the contract to portray the corporate-minded genius.