Jared Gilmore, Jennifer Morrison Jared Gilmore, Jennifer Morrison

Once Upon a Time's second season hasn't even begun filming, but the cast and producers came to Comic-Con Saturday ready to spill details — and boy did they!

Now that magic has returned to Storybrooke, a whole slew of fairy tale characters will be joining the ranks of Snow White (Ginnifer Goodwin), Prince Charming (Josh Dallas), the Evil Queen (Lana Parrilla) & Co. Who's set to appear? Find out below what the cast and executive producers Adam Horowitz and Edward Kitsis revealed at the panel, which was moderated by TV Guide Magazine's Will Keck. Plus: Who's Henry's father? Will they make it back to fairy tale land? Who is Dr. Whale (David Anders)?

Regina's shocking origin story, Storybrooke's future and more Once Upon a Time scoop

Read more Comic-Con coverage

5. Returning faces:
Now that the show will be introducing Sleeping Beauty in Season 2, the producers hinted that Maleficent (Kristin Bauer) — who appeared to meet her demise in the finale — might return. "I didn't see her body," Kitsis and Horowtiz teased in unison. "There's magic in Storybrooke now," Kitsis added. The producers also hinted that Rumpelstiltskin's son Bae will likely appear in Season 2. Meanwhile, Sheriff Graham (Jamie Dornan) made a guest appearance in a spoof video for a fake dating site called Singlebrooke, so here's hoping he'll also return.

5. Magic issues: Now that magic is in Storybrooke, Ruby can turn into The Big Bad Wolf once a month when the moon shines. Will that be an issue in Season 2? "Is that not the biggest question? That would be bad," Meghan Ory teased.

6. Whale, revealed: Many of the Storybrooke residents' dual identities were revealed last season, but that of Dr. Whale is still a mystery. However, the producers promised his fairy tale alter ego would be revealed in Season 2. 

7. New faces: Besides Mulan and Sleeping Beauty, the producers welcomed the idea of introducing other Disney characters. In particular, they were very receptive to Ariel and Aladdin, but not so much for Winnie the Pooh and Goofy. (Rightly so!)

Which new characters would you like to see on Once Upon a Time?

Once Upon a Time returns Sundays this fall on ABC.

Check out the title cards, Hook's introduction and the Singlebrooke spoof below: