ImageCap Full name Gender Profession Family Weapon Date of birth Date of death Status First appearance Last appearance Portrayer Jack Kirstein is a notorious arms dealer dealing illegal arms on the black market. He made the deal with the crooked ATF agent, Bennet Hirsch of a deadly military-grade government weaponry to a terrorist organization. He is the secondary antagonist in the episode Surf N Turf in Lethal Weapon. He is portrayed by Kwame Patterson.