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Game Of Thrones: Welsh Actor Iwan Rheon Joins Season 3 Cast

Iwan Rheon attends the premiere of 'Wild Bill' at Cineworld Haymarket, London, on March 20, 2012 -- Getty ImagesIwan Rheon attends the premiere of 'Wild Bill' at Cineworld Haymarket, London, on March 20, 2012 -- Getty Images

Another new face has joined the cast of Season 3 of "Game of Thrones."

Iwan Rheon will play the mysteriously described "BOY," HBO confirmed to Access Hollywood on Friday.

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The actor previously starred alongside "GOT" Season 2 cast member Tom Wlaschiha (Jaqen H'ghar) in the film, "Resistance" in 2011.

He also appeared in the British television series "Misfits," which featured Michelle Fairley (Catelyn) in a small role as a mother of one of the misfits.

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Speculation that the actor had joined the cast of the show first emerged earlier this month when he was spotted at Belfast's Laverys bar. Iwan was pictured alongside Alfie Allen (Theon Greyjoy), Gwendoline Christie (Brienne) and Nikolaj Coster-Waldau (Jaime Lannister) playing pool.

-- Jolie Lash

Copyright 2012 by NBC Universal, Inc. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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