Princess Ozma

Ozmais the princess ruler of Oz who appears as a minor and later major character in the Oz books and as a supporting character in Return to Oz.

Return to Oz
The film, which was based loosely on the books Ozma of Oz and The Marvelous Land of Oz, reveals that Ozma's father was the king of Oz before the Wizard came, and Mombi made Ozma her slave. When the Nome King took over Oz and promised Mombi the heads of 30 women (to switch heads with) if she kept her a secret, Mombi imprisoned her within the mirror. Somehow, Ozma was able to appear outside Oz and talk to Dorothy at Dr. Worley's clinic; after discovering that some of his patients have been damaged by his machines and locked in the cellar, she rescued Dorothy from the clinic, but Nurse Wilson discovered them and chased after them, resulting in both of them falling into the river. Ozma vanished, and seemingly drowned; presumably she returned to her position in Oz, which was inside the mirror. She showed Dorothy the way out of Mombi's mirror room when Dorothy was taking Powder of Life from Mombi's cabinet containing her original head, and Mombi was trying to stop her. After the Nome King was destroyed and Oz restored to its original state, Dorothy got Ozma out of the mirror, and she took her position as ruler of Oz. She is also revealed to be the creator of Jack Pumpkinhead, who calls Ozma his mother. She used the Ruby Slippers to send Dorothy back to Kansas, saying she would look in on her from time to time and take her back to Oz if she wishes to return. Afterward, Dorothy saw Ozma in the mirror, indicating that Oz was not a dream (as both movies initially implied).