'Once Upon a Time' season finale: Emilie de Ravin and Jamie Dornan return

We've been promised the season finale of "Once Upon a Time" is uber-epic on the epic scale of epicness - and now that we've got a description of the episode, some promised returning guest stars and some pictures, we believe that it just might blown your minds, fans.

ABC has released a list of guest stars that includes Emilie de Ravin as Belle, Jamie Dornan as the Huntsman, Kristin Bauer as Maleficent, Sebastian Stan as Jefferson/Mad Hatter and David Anders as Dr. Whale. Plus, the description promises a team-up of ... Emma and Regina.

"Emma and Regina team together in order to find a way to save Henry's life. Meanwhile, in the fairytale land that was, Prince Charming attempts to escape from the Evil Queen's clutches in order to reunite with Snow White who, unbeknownst to him, has already taken a bite of the Queen's poison apple."

We can hardly wait. Here are a few pictures to whet your appetites - we wonder if in the two that are below, did Emma just find August, turned back into wood? Check out our full photo gallery for all the "OUAT" season finale goodies.