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.
King (Snow White)
In "Once Upon a Time", the King is known and named as King Leopold (portrayed by Richard Schiff as an older man and by Eric Lange as a young prince). As a Prince, Leopold meets Cora after she is betrayed by Jonathan, a man claiming to be a Prince. The two form a strong bond until Cora learns he is engaged to Princess Eva, who informs Leopold of her secret child, leading him to remove Cora from his kingdom. Becoming King, Leopold marries Eva and the two have a daughter named Snow White. Though the Good Queen Eva, Snow White's mother, later dies after being poisoned by Cora. After Regina saves Snow White from a runaway horse, Leopold remarries once again her in order to give his daughter a stepmother.