Elsa

Elsa, also known as the Ice Queen , is a character on ABC's Once Upon a Time. She débuts, with her only appearance, in the twenty-second episode of the third season. She will be portrayed by Georgina Haig in Season Four.

The Ice Queen is based on a character from the Disney adaptation of the fairytale, "The Snow Queen".

Trivia

 * The ABC series’ character breakdown describes her as "The Queen of Arendelle, this late-20s/early-30s beauty long struggled to control her “chilling” powers and even unleashed upon her town an eternal winter during her coronation. Ultimately, 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".