Once Upon a Time Stars Preview Frozen Arc, Sing "Let It Go"

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During their panel discussion at Comic-Con over the weekend, the cast and crew of Once Upon a Time previewed Season 4, talking Elsa, the upcoming Frozen arc, the return of Regina's mirror and more.

In one-on-one interviews later, meanwhile, stars and crew members spoke exclusively to TV Fanatic about what we can expect from their characters, while some also showed off their singing voices.

Take it away, Josh Dallas!

Producers Edward Kitsis and Adam Horowitz also assured non-Frozen fans that the Once Upon a Time Season 4 storyline will be accessible to those unfamiliar with this Disney film:

Colin O'Donoghue refused to sing, but he did talk about Hook's new look and his possible return to the dark side:

Then there were the newlyweds. Will Rumple and Belle enjoy a honeymoon phase? Robert Carlyle and Emile de Ravin preview upcoming obstacles for this beloved couple:

Finally, Jared S. Gilmore lets it go with passion in the following Q&A:

Once Upon a Time Season 4 Episode 1 airs on Sunday, September 28 at 8/7c.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.

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