الإعلان التشويقي
طاقم التمثيل
Sid McCoy
Secretary of Defense
Martin E. Brooks
Dr. Jefferson J. Johnson
Dolph Sweet
Missile Commander
Byron Morrow
Secretary of State
Eric Braeden
Dr Charles Forbin
Georg Stanford Brown
Dr. John F. Fisher
Paul Frees
Colossus (voice) (uncredited)
William Traylor
Party Guest (uncredited)
Gordon Pinsent
The President
William Schallert
CIA Director Grauber
Willard Sage
Dr. Blake
Alex Rodine
Dr. Kuprin
Marion Ross
Angela Fields
Robert Cornthwaite
First Scientist
Don Ross
Logan US Air Force (uncredited)
Susan Clark
Dr. Cleo Markham
James Hong
Dr. Chin
Tom Basham
Thomas L. Harrison
Robert Quarry
Scientist (uncredited)