Guess which Lost star is playing the Joker!

The actor who played one of the most devious bad guys seen on TV in the past decade is taking on the role of one of the greatest supervillains in comic book history next year.

According to TV Guide, Lost and Person of Interest star Michael Emerson has been set to voice the Joker in part two of DC's upcoming animated adaptation of Frank Miller's classic The Dark Knight Returns. Emerson joins the likes of Cesar Romero, Jack Nicholson, Mark Hamill and Heath Ledger in the small group of actors who have played or voiced the Clown Prince of Crime on TV or the big screen.

In The Dark Knight Returns—which helped reinvent the Bat and revolutionize comics when first published in 1986—the Joker re-emerges to once again torment an aging, cynical Caped Crusader, who himself has put the cowl back on after a decade away.

Emerson said about the role, "He's one of those great villains that an actor like me likes to play because he has layers—he has a face for the world and a face for himself. He is, in a way, a villain who is a natural actor. All of that is that is delightful and confounding at the same time."

As opposed to the tightly coiled, enigmatic characters he's played on TV in Lost (Ben Linus) and Person of Interest (Harold Finch), Emerson added that "the amp is turned to 11 at all times" when voicing the Joker.

The Dark Knight Returns, Part 2 will come out in early 2013, while Part 1 arrives this Sept. 25 on DVD, Blu-ray, digital download and VOD. Peter Weller stars as Batman, with Ariel Winter as the new female Robin and Mark Valley as Superman. Do you think Emerson will nail it as the Joker?

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