Mombi is a fictional character in L. Frank Baum's classic children's series of Oz Books. She is the most significant antagonist in the second Oz book The Marvelous Land of Oz (1904), and is alluded to in other works. Mombi plays a very important role in the fictional history of Oz.
The character was originally presented as a lowly hag who had enchanted Princess Ozma in order to prevent her from ascending to the throne. Later in the series, Baum specified that she had once conquered and ruled the Gillikin Country, as the Wicked Witch of the North, only to be deposed by the Good Witch of the North.
In the 1985 movie Return to Oz, the character of Mombi (portrayed by Jean Marsh) was combined with head-exchanging Princess Langwidere from the third book in the series, Ozma of Oz and she is renamed Princess Mombi. Here, she is portrayed as a dark-haired, deranged and evil middle-aged sorceress. She is a coward at heart who grovels before the Nome King and begs for her life when he is displeased with her. She makes a deal with the Nome King for if she trapped Princess Ozma in her enchanted mirror, he would make her a princess and gives her thirty beautiful heads (two of them are portrayed by Sophie Ward and Fiona Victory) which she could switch depending on her mood. He also gives her the Emerald City after he took away the emeralds. Mombi also guards the Powder of Life. When Dorothy encounters "Princess Mombi" in her palace, Mombi develops a fondness for Dorothy's head and locks her in the tower, planning to remove her head and take it once the girl has reached adulthood.
Mombi has been suggested to play 27 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.