Lex was raised alongside with his half sister Lutessa and his adopted brother Clark by his father. Like his siblings, Lex was trained to be Lionel's heir. They were pitted them against each other. That was Lionel's way of discovering which of them was worthy to inherit his empire. At one point in his life, Lex started to study Meteor Freaks and also branded the Luthor family crest on Clark's arm by using Gold Kryptonite. He was then murdered by Clark with the approval of Lionel.
- Lex of Earth-2 was never seen or heard. He was just mentioned in Season 10 and Season 11.
- Appearances of Alexander Luthor (Smallville Earth-2)
- 1 Images featuring Alexander Luthor (Smallville Earth-2)
- Quotations by or about Alexander Luthor (Smallville Earth-2)
- Character Gallery: Alexander Luthor (Smallville Earth-2)