Haig, who played Etta Bishop on Fox’s Fringe, will play Queen Elsa of Arendelle — the main antagonist from the Frozen movie.
Elsa has long struggled to control her “chilling” powers and even unleashed an eternal winter upon her own town during her coronation. Eventually, she realized that the key to controlling her powers is love — namely, her bond with sister Anna — and now she is aware of the threat she poses if she were to lose control of her magic again.
Elsa is expected to appear in around nine episodes. If you missed it, check out the OUAT Season 4 Frozen tease below: