At this point we know Elsa from Frozen is going to be a central character on Season 4 of Once Upon a Time. The Disney queen was released from her prison jar at the end of the Season 3 finale, igniting a trail of ice in her wake — but is there another face joining the show next season?

“Humpty Dumpty is coming,” Lana Parrilla (Regina Mills/Evil Queen) teased to E! Online at the ABC Upfronts last week. “Beware and be afraid.”

All jokes aside, both Lana and Jennifer Morrison (Emma Swan) were stumped when asked about the next character they’d like to see come aboard the show, noting that there aren’t that many characters left. While Lana did throw out Humpty Dumpty’s name (as a joke, we think), Jennifer stayed mum on the speculation.

Switching gears, Lana admits that she thinks the Frozen twist is both “amazing” and “fantastic” and that she can’t get the animated version out of her head. Jennifer elaborates a little bit more.

"It’s a big deal!” Jennifer said of the addition of Elsa. “I think it’s a big deal that they were even approved to use Frozen on the show. I have no idea what they’re going to do with it. I know it’s going to be out of this world, looking at the way they moved around everything with Peter Pan, The Wicked Witch, and The Wizard of Oz. I’m just so fascinated to see how they integrate the characters from Frozen.”

You aren’t alone, sister!

What do you think of Humpty Dumpty joining the show? Have any feelings about the addition of Elsa? Hit the comments and let us know!

Source: E! Online

Carson Blackwelder is an Associate Editor at Wetpaint Entertainment. Follow him on Twitter and Google+!