Guest Stars Boti Bliss as DNA Analyst Maxine Valera Brendan Fehr as Audio/Visual Tech Dan Cooper Rob Estes as Nick Townsend Michael Trevino as Matthew Batra Charles Hittinger as Derrick Perry Robert Hoffman as Brad Hoffman Cara Pifko as Donna Hicks Ethan Erickson as Sgt. Sean Reynolds Charles Duckworth as Corporal Kevin Kirby Andrew Borba as Major Brenton Monnae Michaell as Mrs. Kirby Co Starring Josue Aguirre as ND Marine Jayson Floyd as Sgt. Timothy Hicks Corey Feinstein as Soldier