Reparto (por orden de créditos)
Peter Jennings
Self - Presenter
Gar Alperovitz
Self
Barton Bernstein
McGeorge Bundy
William Lanouette
David Robertson
Clement Attlee
Self(uncredited)(archiveFootage)
Ernest Bevin
James Byrnes
Winston Churchill
Anthony Eden
Albert Einstein
Dwight D. Eisenhower
Andrei Gromyko
Hirohito
Adolf Hitler
William D. Leahy
George C. Marshall
Vyacheslav Molotov
Benito Mussolini
J. Robert Oppenheimer
Eleanor Roosevelt
Franklin D. Roosevelt
Joseph Stalin
Henry L. Stimson
Leó Szilárd
Harry S. Truman