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.
It's Not Easy Being Green (Once Upon a Time)
Back in Oz, Zelena demands that the Wizard help her to travel back in time to stop Cora from abandoning her, but he claims that it's impossible, even for him. Suspicious, she uses her power to bring the curtain down. It turns out that the "Wizard" is none other than Walsh (Emma Swan's boyfriend and ex-fiance), a circus barker from Kansas. Walsh says he does not have magic, but he collects it. Zelena decides that she has no use for him, but what she could use is a trained circus animal. And after seeing a flying monkey poster, she drags Walsh and transforms him into the very first one, and uses him thereafter to do her bidding.