ONCE UPON A TIME Now Casting for FROZEN's Elsa, Anna & Kristoff

As previously revealed, Once Upon a Time is bringing Disney's FROZEN to the small screen.

Today, TVLine has confirmed that the hit ABC fairy tale series is not only bringing Elsa into the fold, but Anna and Kristoff, as well. Casting is now underway on the three roles.

The official character descriptions, via TVLine, are as follows:

"ELSA | 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 (in which instance Vancouver weather could rival Winnipeg's!)

ANNA | Elsa's slightly younger sister is a fun-loving, fearless optimist who often gets herself into situations where she is in over her head, yet is able to triumph due to her resourcefulness and can-do spirit. She values her relationship with her sister above all else.

KRISTOFF | This handsome, hearty, salt-of-the-earth ice cutter spent most of his life alone (unless you count his reindeer). He has a sometimes-gruff demeanor that can hide his deep love for Anna and her sister Elsa. When we first meet Kristoff on Once, he is adjusting to life at the Castle - including sleeping indoors for the first time in his life."

FROZEN tells the story of fearless optimist Anna (voice of Kristen Bell) who sets off on an epic journey-teaming up with rugged mountain man Kristoff (voice of Jonathan Groff) and his loyal reindeer Sven-to find her sister Elsa (voice ofIdina Menzel), whose icy powers have trapped the kingdom of Arendelle in eternal winter. Encountering Everest-like conditions, mystical trolls and a hilarious snowman named Olaf (voice of Josh Gad), Anna and Kristoff battle the elements in a race to save the kingdom