While Once Upon a Time fans have become well acquainted with the Wicked Witch (Rebecca Mader), some of the witch's enemies from Oz are set to make appearances soon.

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Mader told the press at WonderCon this weekend that the show will be traveling back to Oz again, where some of the most iconic figures from the enchanting world will be introduced.

"I'm really glad we get to go back to Oz again," Mader said. "We get a lot of stuff in Oz and we get to meet Glinda any minute now. Glinda and Dorothy are coming. So, that was really fun. That felt like we were in a whole different TV show. It just felt like Once Upon a Time in Oz. There's really fun stuff coming up with that."

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It had previously been announced that actress Sunny Mabrey would be playing Glinda the Good Witch in Once Upon a Time, but this is the first confirmation that Dorothy will also be introduced this season. Mader noted that there was some "dark stuff" coming up on the show, and with only three episodes left before the season finale, anything is possible, "because I'm wicked, and wicked always wins."

The season 3 finale is appropriately titled, There's No Place Like Home, a nod to Dorothy's famous line from The Wizard of Oz.

Once Upon a Time season 3 airs Sundays at 8 p.m. on ABC.

Watch a promo for the next episode of Once Upon a Time here:

Tags: Once Upon A Time television ABC