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.
Cowardly Lion
The Cowardly Lion appears in the "Once Upon a Time" episode "Where Bluebirds Fly." Though he doesn't speak, the Cowardly Lion still has his traits. The Cowardly Lion was a line of defense for the Crimson Heart that is sought out by Stanum and Zelena. After the Cowardly Lion attacks Stanum, he is driven away by Zelena.