Lex Luthor (Smallville)

Alexander Luthor is a character in the television series Smallville, portrayed by Michael Rosenbaum. Based on the DC Comics character of the same name, Lex was adapted to television in 2001 by Alfred Gough and Miles Millar - this is only the third time the character has been adapted to a live-action television series. The character has also appeared in various literature based on the Smallville television series, none of which directly continues from or into the television episodes. Rosenbaum played the character as a series regular from the pilot episode until the seventh season finale, but returned as a guest star for the two-hour series finale.