The 늑대 that stopped Emma from leaving Storybrooke has not been given an identity, but we have been given clues enough to determine it. In a sneak peek for tonight's episode,Graham is often featured with one 늑대 as his companion. In another sneek peak,the Evil 퀸 later reveals that he was raised 의해 wolves. Since everyone in the fairy tale land was affected 의해 the curse,even animals, I believe that the 늑대 that kept Emma from leaving is the same 늑대 that was Graham's ally and that possibly raised him.