Sebastian Stan guest stars in tonight’s Alice in Wonderland-themed episode of Once Upon a Time as the Mad Hatter!
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In a new interview, Once Upon a Time creators Adam Horowitz and Edward Kitsis discuss the various guest stars we’ll see this season, when Belle will return, what we can expect from the upcoming Alice in Wonderland episode, and just what’s up with David and Mary Margaret’s ailing romance. Beware of spoilers.