a lengthy recuperation, he murders his doctor and escapes, but suffers another heart attack and crashes his car, which explodes. The police presume Corben dead, but journalist Clark Kent is not so sure. Meanwhile, a living Corben falls into the hands of a mentally-unbalanced doctor who turns him into a cyborg and replaces his ailing heart with Kryptonite. As Metallo, Corben returns in the episodes "Super Menace", "People Vs. Metallo", the two-part episode "Threesome", and "Obituary for A Super-Hero". The John Corben incarnation of Metallo appears in a self-titled episode of Lois & Clark: The New Adventures of Superman, portrayed by Scott Valentine. This version is Lucy Lane's boyfriend and a petty criminal. He is shot during a holdup gone wrong and falls into the hands of former LexCorp scientist Dr. Emmett Vale. With help from his brother Rollie Vale, Emmett rebuilds Corben into a Kryptonite-powered cyborg. Using his new form, he wreaks havoc in Metropolis and overpowers Superman, who eventually uses his super-breath and heat vision to defeat Metallo. Emmett is captured, but Rollie escapes with Metallo's kryptonite, leaving Metallo deactivated. The John Corben incarnation of Metallo appears in Smallville, portrayed by Brian Austin Green in the ninth season and an uncredited actor in the tenth season. Introduced in the episode "Savior", this version is a former war reporter who works at the Daily Planet alongside Lois Lane and despises the "Blur" - Clark Kent - because he rescued a prisoner that went on to murder Corben's sister. In the episode "Metallo", Corben is hit by a truck and experimented on by Major Zod's Kandorian soldiers, receiving bionic appendages and an artificial kryptonite-powered heart. Corben targets the Blur to seek revenge for his sister, but Kent uses a lead plate to defeat Corben, who is recovered by LuthorCorp CEO Tess Mercer. In the episode "Upgrade", Corben's prior insanity is explained as a flaw in his kryptonite heart while Mercer's scientists turn him into a mindless weapon. After defeating Major Zod and a red kryptonite-infected Kent, Corben regains his free will, receives a red kryptonite heart from Lane that restores his sanity, and goes underground after parting ways on good terms with her and Kent. In the episode "Prophecy", he returns to villainy and using a green Kryptonite heart after being recruited by Toyman to join his company, "Marionette Ventures". In the comic book continuation Smallville Season 11, it is