once upon a time princess elsa
After conquering the multiplex, "Frozen" is set to take over television, too.

"Once Upon a Time," which airs on Disney-owned ABC, featured a cameo from Queen Elsa herself during Sunday night's season finale, teasing a new story arc set to begin during the show's upcoming fourth season season. During the final seconds of the episode, Elsa is seen emerging in Storybrooke, shooting icy beams from her hands and stalking away with her back to the camera.

Showrunners Eddy Kitsis and Adam Horowitz spoke to The Hollywood Reporter about the big reveal, telling the trade that they came up with the idea to incorporate "Frozen" into "Once Upon a Time" shortly after the movie's November release. Though it's a nifty bit of corporate synergy, the pair said that they had to ask for permission from Disney in order to proceed with the storyline -- "It's actually quite hard to get these characters on the show," Kitsis told THR -- and the studio will have a hand in vetting plot points going forward.

"[What] we loved so much about the character of Elsa was that she was considered a villain but she never really really was," Kitsis said. "She was misunderstood. That, on our show, speaks to us so strongly, that it was a toy we had to play with."

"We are honored to be allowed to do it," Horowitz added. "We loved the movie. We fell in love with it when it came out last year like everyone did and we want to do our best to do it justice."

The pair said that they still haven't settled on an actress to play Elsa (the woman seen on the air Sunday night was a stand-in), though they expect to make a decision sometime in the next few weeks. The character is tentatively slated to appear on the show again during the season four premiere.

Photo courtesy ABC

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