The U.S. has handed over control of its nuclear defense system to the Colossus supercomputer designed by scientist Dr. Charles Forbin. It soon becomes clear, that the now-sentient Colossus is far more intelligent than its creator realized—with the fate of the world hanging in the balance.
Eric Braeden
as Dr Charles Forbin
Susan Clark
as Dr. Cleo Markham
Gordon Pinsent
as The President
William Schallert
as CIA Director Grauber
Georg Stanford Brown
as Dr. John F. Fisher
Willard Sage
as Dr. Blake
Alex Rodine
as Dr. Kuprin
Martin E. Brooks
as Dr. Jefferson J. Johnson
Marion Ross
as Angela Fields
Dolph Sweet
as Missile Commander
Byron Morrow
as Secretary of State
Lew Brown
as Peterson
