Agent Bennet Hirsch is a tough and straightforward special agent with the ATF (the Bureau of Alcohol, Tobacco and Firearms). Unknown to his agency and the FBI, Hirsch is a mole in the ATF, and the mastermind in the selling of MG-10, a deadly military-grade government weaponry to a terrorist organization, headed by Jack Kirstein. He is the main antagonist of the episode Surf N Turf in Lethal Weapon. He is portrayed by Kristoffer Polaha.