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.
Keegan Connor Tracy
Keegan Connor Tracy (born December 3, 1971) is a Canadian actress. She is best known for her roles as Audrey Malone in the Showtime comedy-drama series "Beggars and Choosers" (1999–2000), the Blue Fairy in the ABC fantasy series "Once Upon a Time" (2011–18), Miss Blaire Watson in the A&E drama series "Bates Motel" (2013–16), and Professor Lipson in the Syfy fantasy series "The Magicians" (2016–18). Tracy's other notable work includes roles on the television series "Stargate SG-1", "Jake 2.0", "The 4400", "Psych", "Battlestar Galactica", and "Supernatural".