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Lucas Luthor src

Lucas Luthor is the son of Lionel Luthor and half-brother of Lex Luthor and Tess Mercer.

Lucas was born because of an affair between Lionel Luthor and his wife's nurse, Rachel Dunleavy. Lionel forced Dunleavy to give up the boy to adoption.[1]

In 2003, Lucas was tracked down by his half-brother, Lex, who took him to Smallville. Together they plotted against their father. To expose that Lionel had regained his eyesight, after having been blind for months, and to secure Lex's position within LuthorCorp. Afterwards, Lucas was sent to an unknown location, under Lex's protection.[2]


  • Lucas Luthor was played by Paul Wesley in one episode of season two.
  • Lucas Luthor was never seen or mentioned again after his only appearance. Subsequent episodes even identify Lex as being Lionel's only son (not counting the deceased Julian).[3][4][5]



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