'Once Upon a Time' Cast Debuts Season 4 Trailer at Comic-Con!

The cast of Once Upon a Time attends a panel for their hit fantasy series during 2014 Comic-Con on Saturday afternoon (July 26) at the convention center in San Diego, Calif.

Jennifer Morrison, Colin O’Donoghue, Josh Dallas, Lana Parrilla, Emilie de Ravin, Jared Gilmore, and Robert Carlyle, were all in attendance to debut the season four promo trailer.

While there, a clip was shown to tease the new Frozen world being added to the show. The clip featured Anna (Elizabeth Lail) and Elsa (Georgina Haig) interacting with each other. To find out what was in the clip, visit

FYI: Jennifer if wearing a Lublu dress and Greymer shoes. Josh is wearing a Dsquared2 suit.

20+ pictures inside of the Once Upon a Time cast attending Comic-Con…