Credit: © Touchpaper, Promotion of BBC Photo: Michael Socha

The Alice in Wonderland-themed Once Upon a Time spin-off is moving forward, and now it's cast its first character. The Hollywood Reporter confirms that Being Human (UK) star Michael Socha will play the Knave of Hearts, and, personally, we couldn't be happier.

We'll admit that we've had some trepidation about this spin-off — will it distract from the main event? — but this news has definitely upped our excitement level. We fell in love with Michael as Tom, a sweet, but deadly, vampire-hunting werewolf, on the UK version of Being Human, and we'd love to see him bring his talents to American TV.

It sounds like Michael's character on the Once Upon a Time spin-off is a bit different than perpetually-nieve Tom: The Knave of Hearts is described as "a sardonic adventurer, a man of action, loner and heartbreaker" whose "swagger isn't quite enough to disguise the fact that he is unswervingly loyal and possessed of a strong moral code."

Before you get too excited (or worried), remember that the spin-off isn't a done deal yet. Members of the Once team will write and shoot a teaser this April, and then the ABC Powers That Be will decide if they want to see a pilot. If the answer to that is yes, the pilot will shoot later in the summer.

The idea for the spin-off is that it would function like American Horror Story, running in defined 13-episode arcs.

Are you excited about this casting news? Sound off in the comments below.

Read more OUAT spoilers here.

Catch the next episode of Once Upon a Time on Sunday, April 21 at 8 p.m. ET/PT on ABC.

Source: The Hollywood Reporter

Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaDMartin