Mark Rolston is a Character Actor well known for his roles in Aliens, Lethal Weapon 2 (with Derrick O'Connor, Nestor Serrano and Jenette Goldstein), The Shawshank Redemption (with Bill Bolender), The Departed, Saw 5 (with Tobin Bell and Al Sapienza), and Saw 6 (Again with Tobin Bell), he played Seth Lambert in 1.3 Parity.