Alexander Joseph "Lex" Luthor is a supervillain appearing in American comic books published by DC Comics. The character was created by Jerry Siegel and Joe Shuster. Lex Luthor originally appeared in Action Comics #23. He has since endured as the archnemesis of the superhero Superman.
Lex Luthor was originally depicted as a narcissistic and egotistical mad scientist from the 1960s to the early 1980s. Since the late 1980s, he has more often been portrayed as the power-mad CEO of LexCorp. He wishes to rid the world of Superman, ostensibly because he views Superman as a threat to humanity, but in reality envies Superman's popularity and influence.