Narrator 威廉·夏特纳

Self - Nuclear Physicist Edward Teller

Self - Commander Joint Task Force One (archive footage) W.H.P. Blandy

Self - Nuclear Weaponeer Frank H. Shelton

Self - U.S. President (archive footage) Dwight D. Eisenhower

Self - U.S Ambassador (1961-1965) to the UN (archive footage) Adlai Stevenson

Newsreel Narrator (archive sound) Randall William Cook

Self (archive footage) Nikolai Bulganin

Self (archive footage) Winston Churchill

Self (archive footage) Everett Dirksen

Self (archive footage) Albert Einstein

Self (archive footage) Enrico Fermi

Self (archive footage) Reed Hadley

Self (archive footage) Averell Harriman

Self (archive footage) 阿道夫·希特勒

Self (archive footage) Hubert H. Humphrey

Self (archive footage) John F. Kennedy

Self (archive footage) Никита Хрущёв

Self (archive footage) Анастас Микоян

Self (archive footage) 玛丽莲·梦露

Self (archive footage) J. Robert Oppenheimer

Self (archive footage) 富兰克林·德拉诺·罗斯福

Self (archive footage) Dean Rusk

Self (archive footage) Woodrow P. Swancutt

Self (archive footage) Leó Szilárd

Announcer (archive footage) Mark Tapscott

Self (archive footage) Paul Tibbets

Self (archive footage) Wernher von Braun

Self (archive footage) John von Neumann

Self (archive footage) 毛泽东

Self (uncredited) Roy Neal