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.
Ruby Slippers (Once Upon a Time)
Ruby is surprised to find herself in the Underworld, as she had been pursuing Zelena via a tracking spell; Ruby believes the wolf in her has destroyed another life: Dorothy's, and she wants to make it right. Emma explains that Zelena is in the Underworld, and suggests they confront her. Hades informs Zelena of Ruby's presence, and Zelena decides to use the silver slippers to leave in order to avoid further damning herself in Regina's eyes. But Regina and the others arrive before she can leave. Zelena reveals that she put Dorothy under a sleeping curse, and that it can't be broken as Dorothy has no loved ones to provide a "true love's kiss." At Regina's urging, Zelena hands over the silver slippers. Ruby realizes that Dorothy's late Auntie Em might be in the Underworld, and they find her at a diner she runs. She agrees to blow a kiss into a bottle for Ruby to bring to Dorothy, but Hades appears and turns Em into a liquid, by contaminating her soup with liquid from the River of Lost Souls, and bottles her up. He declares the Storybrooke visitors anathema, and that anyone who works with them would be under penalty of the same punishment. Ruby is distraught, and Snow asks her if she loves Dorothy; Ruby admits it, but is afraid to try to give Dorothy true love's kiss, as she doesn't know if Dorothy ever reciprocated her feelings. Snow convinces her to try. Zelena goes to Hades' lair, where he pours Em into the River of Lost Souls, and explains that he has done this only because Dorothy is Zelena's enemy. She agrees to try to accept him into her life, and they share a drink.