Zelena (Once Upon a Time)
In December 2013, Rebecca Mader was cast as the Wicked Witch of the West. She made multiple appearances during the second half of season three and was promoted to a series regular for the show's fifth season. The role of the Wicked Witch of the West was written specifically for Rebecca Mader. It was announced that the writers had chosen not to continue with Zelena's storyline and Mader would not be returning for the seventh season of the show. However, Mader later revealed that she would be returning for multiple season seven episodes.
Silver Shoes
In "It's Not Easy Being Green", shortly before "The Doctor", Zelena, the woman who would eventually become the Wicked Witch of the West, goes to the Wizard in order to seek out her family. Upon discovering that she was abandoned by her mother, Cora, and that her half-sister, Regina became Queen and was being trained by Rumpelstiltskin, the Wizard gives Zelena the shoes so that she can travel to the Enchanted Forest to try and replace Regina as Rumpelstiltskin's student. Upon being rejected by him, Zelena turns green with envy. She mocks Rumpelstiltskin with the power of the Silver Slippers, thus causing his later desire to obtain them. Using the Silver Slippers again she returns to Oz and dethrones the Wizard.