Benedict Cumberbatch will not only provide the voice of the dragon Smaug The Magnificent, he will perform the role using the motion capture technology pioneered by Andy Serkis and Weta Digital, according to the actor himself.

The design of the most iconic villain in J.R.R. Tolkien’s The Hobbit, and indeed probably the greatest literary great worm of the 20th Century, remains a secret and a key ingredient of Peter Jackson’s two part movie adaptation due in December 2012 and December 2013. The actor, the title character acting opposite Martin Freeman in the BBC’s Sherlock, revealed to Collider during a press junket that he hasn’t done his Hobbit stint yet and that he will not only provide the voice for the creature but perform him as well. You can see the video or read the interview right here.