Some new faces are coming to Storybrooke in theOnce Upon a Timeseason finale.

I can say that definitely its not the Brothers Grimm, executive producer Edward Kitsis says.

But who theyareportraying will play into the season ender.

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Credit: ABC/Jack Rowand

Sam and Hank play characters who play a pivotal role in the season finale, EP Adam Horowitz adds.

Its more like opening a door, rather than introducing the whole of what season 6 will be.

Hopefully were giving you a little taste of whats to come.

Once Upon a Timeairs Sundays at 8 p.m.