Warning: This article contains SPOILERS for Superman & Lois season 4, episode 6.Superman & Lois season 4 has presented Michael Cudlitz’s Lex Luthor as the show’s ultimate villain, and the DC series seems to be making a crucial change to the character as he faces Clark Kent. While Superman & Lois season 4’s cast is not as big as in previous seasons, those who remain are being used in an effective manner. That is the case with Cudlitz and his version of Lex Luthor. While Michael Rosenbaum’s Lex Luthor might still be the best live-action version of the Superman villain, Cudlitz is making sure that it becomes a close call.