Emerson Brooks

as Master Chief Mike Nash

as Billy Burns

as DDA Ben Miller

as Darren

as DEA Agent Jerry Covington

as Eugene Shaw

as Thomas Forsythe / The Watcher

as Robel Osman

as Deputy Alex Doberstein

as Moclan

as Charlie Robinson

as Marine Sniper (uncredited)

as Capt. Joseph Meylan

as Senior SHIELD Agent

as Hadar

as Doug Fell

as Military Bus Driver

as Chuck Phillips

as Connelly

as Gunnery Sergeant Hugh Patterson

as Detective

as NBC Reporter (uncredited)

as First Soldier

as Claudius

as FBI Agent Steppes

as Terrence

as Police Officer

as Loadmaster

as Tony Silva

as Air Force Recruiter

as Cop

as Police Officer

as Douglas

as Carl Greer

as David Crawford

as Paramedic

as EMT Gonzalez