The name of the actor is Kiefer Sutherland. He will now provide for the voice of BIG BOSS! It was release today by Konami on the Pre-E3 show. This is not his first time doing this, he is most famous for doing the voice of Sgt. Roebuck in COD World at War. For more info about Kiefer Sutherland here is the link http://www.imdb.com/name/nm0000662/?ref_=sr_1#Actor. Thanks you guys for your time! Keep Playing!