Step Your Game Up. Kevin Butler might be the official voice of PlayStation, but hes not the only man representing the brand. Scattered across the world on blogs, message boards and Facebook pages, there are countless legions of the PlayStation faithful who sing the praises of the brand each and every day. But there is one voice that rings out, rising above them all. Meet Marcus Rivers, the undisputed and unsanctioned mouthpiece of the PSP nation. Hes brash, fast-talking, trash-talking and always looking to stir it up with anyone who doesnt have a PSP in their hand.