'Once Upon a Time'
Cast member Larra Parrilla poses during a photocall for the TV series "Once Upon A Time" at the 52nd Monte Carlo Television Festival in Monaco June 12, 2012. Reuters/Eric Gaillard

Executive Producers Edward Kitsis and Adam Horowitz teased some details about “Once Upon A Time” Season 6. The fans will get to see some back story of the villain Mr. Hyde and learn about a plan the Evil Queen set in motion many years ago.

[Spoiler alert]

In an interview with TV Line, Kitsis said that it is important for Mr. Hyde (Sam Witwer) to be in Storybrooke because he wants to see “his story play out.” The Land of Untold Stories is a place where the characters’ stories are paused. Now all the characters that have travelled to Storybrooke will be looking to the heroes for help or seek out “darker forces.”

Another big villain this time around is the Evil Queen (Lana Parrilla). Kitsis teased that her plan for revenge will be “delicious.” She is apparently going to attack her enemies in “style” and with “grace” in “Once Upon A Time” Season 6.

Her plan was set in motion a long time ago, Horowitz teased. There is a “very specific thing” from the past that “comes back into play in the present.”

Horowitz revealed that there are multiple consequences for Regina after splitting the Evil Queen from her. One of the consequences is the effect it has on her magic.

While the Charmings have to deal with the Evil Queen’s attack, things may not be easy for Emma (Jennifer Morrison) and Hook (Colin O’Donoghue). Kitsis teased that no relationship on the show is a “fairy tale.”

Meanwhile a dead character is set to return in “Once Upon A Time” Season 6. Tzi Ma (The Dragon) will be reprising his role on the show this year, Entertainment Weekly reports. The character was killed by the Evil Queen in the previous season, so it is not clear how he will return now.