Smallville Season 4 Episode 17 Onyx 2004
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A black kryptonite explosion splits Lex in two and his evil side - Alexander - is released. Alexander imprisons Lex in the mansion then gives full vent to his evil side - he threatens to evict Lana from the Talon unless she becomes his mate, jousts with Lionel, and tries to kill Clark and Chloe when they figure out his secret.
- Released: 2005-04-13
- Runtime: 43 minutes
- Genre: Sci-Fi & Fantasy, Action & Adventure, Drama
- Stars: Tom Welling, Erica Durance, Cassidy Freeman, Justin Hartley
- Director: Alfredo Septién, Turi Meyer, Tom Welling, Tom Flores, Anne Cofell Saunders
