as Dr. Aaron Zicherman

as Waters

as Howard

as Sgt. Joe Corrigan

as Alonzo Stackhouse

as Glassy Wolf

as Mr. Greasley

as Brett Slater

as Commander Carson Williams (uncredited)

as Paul Creedy

as

as Marcel Crawford

as Lance Bryant

as Dunkan Bulk (voice)

as William Johnson

as Dunkan Bulk (voice)

as Agent Kemp

as Doctor Larkin

as Dr. Trent Larkin

as Dunkan Bulk (voice)

as President Barack Obama

as Security Guard

as Michael

as Marcus Weller

as Colonel Morgan

as Agent James Sheridan

as Arthur Rutledge

as Marcus

as Clarence Wiedman

as Stan

as Carvell Watson

as Sgt. Ray Cutter

as George

as Matt

as Camp Soldier

as

as Braxton P. Hartnabrig

as Spyro

as Rookie

as Bobby Scott

as

as Mark

as Bo Whitley