Smallville

Season 4 Episode 17

Onyx

2
Aired Friday 8:00 PM Apr 13, 2005 on The CW
9.3
out of 10
User Rating
725 votes

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Episode Summary

EDIT
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.moreless

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Tom Welling

Tom Welling

Clark Kent/Kal-El of Krypton

Kristin Kreuk

Kristin Kreuk

Lana Lang

Michael Rosenbaum

Michael Rosenbaum

Alexander ('Lex') Joseph Luthor

Allison Mack

Allison Mack

Chloe Sullivan

John Glover

John Glover

Lionel Luthor

Annette O'Toole

Annette O'Toole

Martha Clark Kent

Malcolm Stewart

Malcolm Stewart

Dr. Sinclair

Guest Star

Craig Lapthorne

Craig Lapthorne

 

Guest Star

Carra Maureen

Carra Maureen

Fencing Instructor

Guest Star

Rekha Sharma

Rekha Sharma

Dr. Harden

Recurring Role

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Trivia, Notes, Quotes and Allusions

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