Brian Austen Green, best known as Derek Reese in Terminator: The Sarah Connor Chronicles, is all set to appear as Metallo/John Corben in the ninth Season of Smallville.
He will appear in at least the first two episodes of Season 9, and the Smallville version of the longtime Superman villain will be introduced as Daily Planet journalist John Corben, which is similar to the character's Silver Age era background in the comics.