White Witch, whose name is Jadis, is the primary antagonist of not just Magician’s Nephew but also the best known of all the Narnia books, The Lion, the Witch, and the Wardrobe. She is the one who plunged Narnia into an endless winter (where it never ever gets to Christmas) and turns her enemies into statues.

Greta Gerwig’s upcoming Netflix adaptation of The Chronicles of Narnia has officially cast Emma Mackey in the role of Jadis the White Witch.

Emma Mackey has reportedly joined the cast of Netflix's adaptation of The Chronicles of Narnia as Jadis the White Witch.