Thomas Forsythe / The Watcher (1 episode)

Deputy Alex Doberstein (4 episodes)

Robel Osman (7 episodes)

Master Chief Mike Nash (1 episode)

DEA Agent Jerry Covington (1 episode)

Billy Burns (8 episodes)

DDA Ben Miller (1 episode)

Chuck Phillips (1 episode)

Darren (4 episodes)

Eugene Shaw

Moclan (1 episode)

Douglas (2 episodes)

Charlie Robinson (4 episodes)

Capt. Joseph Meylan (24 episodes)

Doug Fell (1 episode)

Gunnery Sergeant Hugh Patterson (1 episode)

Marine Sniper (uncredited)

Senior SHIELD Agent

Hadar (1 episode)

Military Bus Driver

Tony Silva (1 episode)

Police Officer (1 episode)

Detective (1 episode)

Connelly (1 episode)

NBC Reporter (uncredited)

First Soldier

EMT Gonzalez (2 episodes)

Kaleem

Cop (1 episode)

Air Force Recruiter (1 episode)

Claudius

Paramedic (1 episode)

David Crawford (1 episode)

FBI Agent Steppes

Police Officer (1 episode)

Carl Greer (1 episode)

Terrence

Loadmaster (1 episode)