Guest Stars Sean Murray as Special Agent Timothy "Tim" McGee Brian Dietzen as Assistant Medical Examiner Dr. Jimmy Palmer Michael Graziadei as Chuck Laz Alonso as S Sgt. Washington Bellamy Young as ATF Agent Melinda Stone Sam Witwer as S Sgt. Rafael Stuart Stone as Dillon Adam Hendershott as Josh Erin LeShawn Wiley as Corporal McClain Scott MacDonald as Militia Leader