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