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.
A Tale of Two Sisters (Once Upon a Time)
Brian Lowry of "Variety" gave the episode a generally positive review, saying "“Frozen” might not be able to glide through all the mazes that have taken “Once Upon A Time” from boundless promise to convolution, but incorporating characters from Disney’s animated smash has made the ABC series feel a whole lot cooler. The season premiere is heavily driven by the arrival of Elsa, the movie’s ice queen, in a continuing plot that will have her searching for her sister Anna. Frankly, it’s still surprising the studio would risk such a formidable asset in this manner, but the stunt should help rekindle interest in a program whose happiest days appeared well behind it."