Confirmed: Sebastian Stan to play Mad Hatter!

So, you guys remember how I posted awhile back that Sebastian Stan was rumored to play the Mad Hatter in an upcoming episode? Looks like that rumor has turned out to be confirmed as truth!

Check out the spoiler from Kitsis and Horowitz themselves:

In Episode 17, Sebastian Stan will play the Mad Hatter, and we’ll see how the Mad Hatter became mad. The caterpillar will be played by Roger Daltrey of The Who. “We kind of do our Once twist on it,” Adam says.

So, who is looking forward to this episode? I know I am for sure!