Once Upon a Time fans will not want to miss the opportunity to spend an evening with stars Ginnifer Goodwin and Lana Parrilla.

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Disney's D23 expo is lining up panelists for this year's event, which takes place from Aug. 14-16 in Anaheim, Calif. Once Upon a Time will have a presence at the convention, and now we know details on who will be there.

Goodwin (who plays Snow) and Parrilla (Regina) will be at a special panel called Once Upon a Time: An Evening with Snow White & the Evil Queen.

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Here is the official panel description:

"Once Upon a Time's savior has gone dark! As Emma Swan transitions into her role as the Dark One, join the resident fairy-tale characters as they cope with Emma's new role and begin the search for Merlin. This is a journey that will take our heroes from the Enchanted Forest to Camelot and along the way bring many surprises, including Merida from Brave, as Once Upon a Time introduces its first Pixar character. Join co-creators and executive producers Edward Kitsis (LOST) and Adam Horowitz (LOST) along with series stars Ginnifer Goodwin and Lana Parrilla as they discuss the upcoming season of unexpected twists, evolving characters, new adventures, and new rivalries. This panel is sure to bring some surprises you don't want to miss and an exclusive sneak peek at the upcoming season premiere! The Q&A with this fairy-tale team will be moderated by D23's Jeffrey Epstein."

The event will take place Saturday, Aug. 15 at 6 p.m. at Stage 23 of the Anaheim Convention Center.

On the show floor there will be an autograph signing from 5-5:40 p.m. with Once Upon a Time stars announced at a later date.

There will also be a special line of Once Upon a Time sold exclusively at the event. A special Snow White and Evil Queen Doll Collection will be released at the Disney Store, only at the expo. The collection is going for $129.95 and there will be an autograph signing with Goodwin and Parrilla from 4-4:45 p.m. that Saturday.

D23 tickets run for $74 for a one-day ticket for adults and $54 for children 3-12.

Meanwhile, Once Upon a Time season 5 premieres Sunday, Sept. 27 at 8 p.m. ET/PT on ABC.