Lex Luthor is a fictional supervillain and the ARCHENEMY of the superhero Superman. He is a wealthy, power-mad American business magnate, inventor, and scientist. Luthor is also a master strategist and manipulator of people. He is often depicted as a criminal mastermind and is considered one of the most intelligent characters in the DC Universe. Luthor's NEMESIS, Superman, is a powerful alien from the planet Krypton who fights for truth, justice, and the American way. Luthor's enmity with Superman is his greatest weakness, as he is constantly trying to outwit and defeat the Man of Steel.