The Wicked Witch of the West stems from The Wonderful Wizard of Oz.
The Wicked Witch of the West is a fictional character and the most significant antagonist in L. Frank Baum 's children 's book The Wonderful Wizard of Oz ( 1900 ) . Hamilton 's characterization introduced green skin and this has been continued in later literary and dramatic representations , including Gregory Maguire 's revisionist Oz novel Wicked : The Life and Times of the Wicked Witch of the West ( 1995 ) and its musical stage adaptation Wicked ( 2003 ) , the 2013 film Oz the Great and Powerful , and the television series Once Upon a Time and Emerald City .