The protagonist of Oedipus the King and Oedipus at Colonus. Oedipus becomes king of Thebes before the action of Oedipus the King begins. He is renowned for his intelligence and his ability to solve riddlles. he saved the city of Thebes and was made its king by solving the riddle of the Sphinx, the supernatural being that had held the city captive. Yet Oedipus is stubbornly blind to the truth about himself.