Capt. Nikolai Shumkov

Himself - Capt. Nikolai Shumkov

Capt. Ryurik Ketov

Himself - Capt. Ryurik Ketov

Theodore Sorensen

Himself - Theodore Sorensen, Special Counsel to the President

Dino A. Brugioni

Himself - Dino A. Brugioni, CIA Analyst

Robert McNamara

Himself - Robert McNamara, Secretary of Defense 1961-1968

Rudolph Rump

Himself - Rudolph Rump, Radar Man, USS Blandy

Capt. Charles Rozier

Himself - Capt. Charles Rozier, USS Cecil

Capt. Alexi Dubivko

Himself - Capt. Alexi Dubivko

Robert J. Tavenor

Chief Petty Officer

Mike Vardy

Ketov (uncredited)

Jane Armstrong