As "Once Upon a Time" continues to film for season 4, spoilers have surfaced regarding a character migrating from "Once Upon a Time in Wonderland."

While everyone is focused on the "Frozen" arc, spoilers have surfaced regarding The Knave, portrayed by Michael Socha.

According to co-creator Adam Horowitz, The Knave's “background as Will Scarlett, who was one of the Merry Men and a thief, comes into play very early.”

“We will be explaining why he’s in town. I can also say that he fits rather nicely into Storybrooke, and his introduction is a really fun one.”

Meanwhile, TVLine also reports that fans might see Emma's own place in sometime on season 4.

“Emma needs her own place, and we’d love for her to see it this year,” said Eddy Kitsis. “The domestic situation of the Charmings and Emma and Henry and Regina does fit into the early episodes."

But, if you're looking for other spoilers, EW has some juicy details on "Once Upon a Time" season 4.

“We will discover what happened to [Elsa], her sister Anna and Kristoff, and how and why Elsa became a prisoner of Rumplestiltskin.”

In addition, “Newlyweds Belle and Rumplestiltskin continue to be deeply in love with each other. But Rumple is hiding a secret from Belle—one that, if found out, could destroy their happiness: he continues to be the master of the dagger that calls upon him to be the Dark One.”