Expect a Deep Freeze on the TV hit Once Upon a Time next season. Several characters from the super-popular Disney movie Frozen will be in the mix...

Two of the roles have just been cast. Scott Michael Foster (Greek) will play Kristoff and Elizabeth Lail will play Anna (who was voiced by Kristen Bell in the movie) in recurring roles. Elsa, who was introduced at the end of the season-three finale, hasn't been cast yet. The character is expected to debut in the first episode this fall.