British actor Jamie Campbell-Bower (RockNRolla, Sweeney Todd; pictured inside) has revealed he will play Volturi leader Caius in The Twilight Saga: New Moon, reports the BBC News. He stars alongside Dakota Fanning in the second adaptation hitting theaters November 20th. The role of Caius is key to the plot of New Moon. He forms part of the triumvirate leading the Italian based coven of vampires called the Volturi. The second book in the series sees the gang become a threat to lovers Bella and Edward. Chris Weitz is set to get behind the camera next month.