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.
Once Upon a Time (TV series)
The fourth season premiered on September 28, 2014. It was also split into two volumes, with the first eleven episodes running from September to December 2014, and the later half from March to May 2015. A new storyline incorporating elements from "Frozen" was revealed when the time travel events of the previous season lead to the accidental arrival of Elsa (Georgina Haig) from the Enchanted Forest of the past to present-day Storybrooke. As she searches for her sister Anna (Elizabeth Lail) with the aid of the main characters, they encounter the Snow Queen (Elizabeth Mitchell). Meanwhile, Regina seeks the Author of Henry's "Once Upon a Time" book so that she can finally have her happy ending. However, Mr. Gold, with the help of Cruella De Vil (Victoria Smurfit), Maleficent (Kristin Bauer van Straten), and Ursula (Merrin Dungey), has his own plan to rewrite the rules governing the fates of all heroes and villains. Henry and Emma race to restore reality and the truth before the twisted inversion becomes permanent. However, the price leads to the ultimate sacrifice.