Oscar Zoroaster Phadrig Isaac Norman Henkle Emmannuel Ambroise Diggs (also known as the "Wizard of Oz" and, during his reign, as "Oz the Great and Terrible" or the "Great and Powerful Oz") is a fictional character in the Land of Oz created by American author L. Frank Baum. The character was further popularized by a stage play and several films, including the classic 1939 film and the 2013 prequel adaptation. In his first appearance in Baum's 1900 book The Wonderful Wizard of Oz, the Wizard rules the Land of Oz from his palace in the Emerald City. He is exposed at the end of the novel as a conman and circus magician, but in further books of the series, he becomes a trusted and valued friend to the Oz characters. Source: Wikipedia (en)