Smallville Onyx (Season 4, Episode 17)
TV-PG
TV Episode | 43 min | Action, Adventure, Drama

Smallville

Onyx (Season 4, Episode 17)

TV-PG

TV Episode | 43 min | Action, Adventure, Drama

An experiment with heated (black) kryptonite at Luthorcorp causes an explosion which badly wounds Dr. Sinclair, the scientist in charge, and creates a molecular copy of Lex which has the evil side of his personality. While the real Lex ...See moreAn experiment with heated (black) kryptonite at Luthorcorp causes an explosion which badly wounds Dr. Sinclair, the scientist in charge, and creates a molecular copy of Lex which has the evil side of his personality. While the real Lex shows Clark the experiment was to create far stronger crops, the evil one gives Sinclair a fatal injection in hospital after questioning him. Fearing an effect on himself, 'Evil Lex' locks the good Lex up wearing an iron mask and sets out ruining lives in Smallville, such as closing The Talon when Lana refuses to be his girlfriend, and taunting Lionel Luthor badly enough to make him turn away from charity. When Chloe shows Clark proof on hospital video recordings there must by two Lex's, Super-boy is duped into telling the fiend everything, believing him to be the real one, so the Clark family and Chloe become his prime targets, and he knows about green kryptonite and its affect on Clark. Written by KGF Vissers See less

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Cast	+ Add Cast
13 cast members

Name	Known for
Tom Welling Clark Kent Clark Kent See fewer	Smallville (2001)
Kristin Kreuk Lana Lang Lana Lang See fewer	EuroTrip (2004)
Michael Rosenbaum Lex Luthor / Alexander Luthor Lex Luthor / Alexander Luthor See fewer	Guardians of the Galaxy Vol. 3 (2023)
Jensen Ackles Jason Teague (credit only) Jason Teague (credit only) See fewer	Supernatural (2005)
Allison Mack Chloe Sullivan Chloe Sullivan See fewer	Smallville (2001)
John Glover Lionel Luthor Lionel Luthor See fewer	Scrooged (1988)
Annette O'Toole Martha Kent Martha Kent See fewer	Superman III (1983)
John Schneider Jonathan Kent Jonathan Kent See fewer	The Dukes of Hazzard (1979)
Malcolm Stewart Dr. Sinclair Dr. Sinclair See fewer	Jumanji (1995)
Rekha Sharma Dr. Harden Dr. Harden See fewer	The Core (2003)
Craig Lapthorne Security Guard Security Guard See fewer	Dark Angel (2000)
Carra Maureen Fencing Instructor Fencing Instructor See fewer	Smallville (2001)
Morris Chapdelaine Alexander Luthor (uncredited) Alexander Luthor (uncredited) See fewer	Pat Rocco Dared (2021)