The villain in the 2016 movie Batman v Superman: Dawn of Justice is Lex Luthor, a three-letter name. Lex Luthor is a powerful businessman and criminal mastermind who has been a long-time enemy of Superman in the DC Comics universe. He is known for his genius-level intellect and his use of technology to commit crimes. In the movie, he is portrayed as a ruthless and manipulative villain who seeks to destroy Superman and take control of the world.