Mark Rolston has created such iconic roles as: Pvt. Drake in Aliens, Bogs Diamond in The Shawshank Redemption, the original Alistar in the mega hit series Supernatural. You will also know him as Walter Pierce in Star Trek: The Next Generation and as Kuroda and Magh in Star Trek: Enterprise. You can also see him in SAW, Ahsoka and much more. Mark is also the voice of Commissioner Gordon, Norman Osborne, Lex Luthor, Deathstroke and Firefly!