The Nome King is a fictional character created by American author L. Frank Baum. He is introduced in Baum's third Oz book Ozma of Oz (1907). He also appears in many of the continuing sequel Oz novels also written by Baum. Although the character of the Wicked Witch of the West is the most notable and famous Oz villain (due to her appearance in the 1939 MGM musical The Wizard of Oz), it is actually the Nome King who is the principal antagonist throughout the entire book series.