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.
Kansas (Once Upon a Time)
When they arrive to the Wizard's palace, Glinda and Dorothy arrive to see the unseen Wizard, who then grants Dorothy her wish by giving her a pair of silver slippers and disappears back to her world. However, after Dorothy disappears, Glinda discovers that the person that was behind the curtain was none other than Zelena, who was pretending to be the Wizard and survived the "melting" by reappearing after the incident. Now that she knows about her being the true threat and revealing her as the greatest evil, Zelena banishes Glinda to a pocket dimension within the northern region of the Enchanted Forest, where she can never tell the others. After she disappears, Zelena's pendant turns green, indicating Zelena's new power.