The Insider.com

Not only am I a huge fan of Sebastian Stan, but I was incredibly enamored of his work as Jefferson, a.k.a. The Mad Hatter on ABC's Once Upon A Time last year. So, when his iconic hat accidentally sent Emma & Mary-Margaret to another dimension in the season premiere, I declared that episode to be the only time OUAT was allowed to bring up the character without actually bringing back Sebastian.

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As you can see in this sneak peek clip from Sunday's all-new episode, my prayers have been answered as Sebastian and The Mad Hatter return to Storybrooke! Not only is Jefferson back in We Are Both (airing October 7 at 8 p.m.), but he'll continue to use his powers in hopes of bringing Emma and Mary Margaret back from fairytale land in the following episode, Lady of the Lake.

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Earlier this year, Sebastian told me that he hoped to get the chance to return. "I loved that character. I grew up reading and loving [The Mad Hatter], so to have the opportunity to bring him to life in such a brilliant way as the showrunners have written him was a blessing. I enjoyed that very much, and I hope there's more of him."

It's nice to see Sebastian got his wish! But will Henry and Charming? Tune in Sunday at 8 p.m. to find out!