Fans of "Once Upon a Time" are no doubt a happy bunch now that production for the show's sixth season has already begun. Aside from photos that teased the stars back at work on the set, new information about who will be arriving in Storybrooke has slowly trickled out.

ABC's beloved fairy tale drama series ended its fifth season run with the denizens of the Land of Untold Stories arriving at Storybrooke. While fans can expect to see new faces, one famliar face will be returning to shed light about the heretofore unknown realm.

TV Line has reported that Jessy Schram is set to reprise her role as Cinderella in episode 3 of the upcoming season. The glass slipper wearing princess will reportedly reveal her connection to the Land of Untold Stories, as well as how she became friends with Snow White (Ginnifer Goodwin).

Aside from Cinderella, fans will also see everyone's favorite psychiatrist back in action. Raphael Sbarge is also returning as Dr. Archie Hopper, Jiminy Cricket's human alter ego and Storybrooke's resident shrink. The good doctor will reportedly have a new patient, although it's still unclear who it will be. Perhaps Hopper will be lending some advice to Dr. Jekyl and Mr. Hyde?

Or maybe the psychiatrist will be seeing someone else from the Land of Untold Stories, like Morpheus or Edmond Dantes. EW has reported that the Greek god of dreams will also be introduced next season and is set to be played by "24's" Giles Matthey. But whether he will appear in the town itself or just in their dreams remains to be seen. What is known is that Morpheus will have scenes with both Rumplestiltskin (Robert Carlyle) and Belle (Emilie de Ravin), who is under a sleeping curse.

Another beloved literary character who will also arrive at Storybrooke is Edmond Dantes, a.k.a. the Count of Monte Cristo. Actor Craig Horner will reportedly take on the role of the wrongfully imprisoned sailor and will appear in at least one episode next season.

"Once Upon a Time" season 6 is set to return to ABC on Sept. 25.