Narrator
William Shatner
Self - Nuclear Physicist
Edward Teller
Self (archive footage)
Albert Einstein
Enrico Fermi
Reed Hadley
Averell Harriman
Adolf Hitler
Hubert H. Humphrey
John F. Kennedy
Nikita Khrushchev
Anastas Mikoyan
Marilyn Monroe
Self - Commander Joint Task Force One (archive footage)
W.H.P. Blandy
J. Robert Oppenheimer
Franklin D. Roosevelt
Dean Rusk
Woodrow P. Swancutt
Leó Szilárd
Announcer (archive footage)
Mark Tapscott
Paul Tibbets
Wernher von Braun
John von Neumann
Mao Zedong
Self - Nuclear Weaponeer
Frank H. Shelton
Self (uncredited)
Roy Neal
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
Nikolai Bulganin
Winston Churchill
Everett Dirksen
First Assistant Camera
Cynthia Pusheck
Associate Producer
Lyle Conway
Editor
Peter Kuran
Producer
Director
Writer
Scott Narrie
Don Pugsley
Original Music Composer
William T. Stromberg
Music Editor
Christine H. Luethje
Hairstylist
Wendy Jill York
Production Manager
Clay Woods
Makeup Artist
Colorist
Gary Barron
Conductor
Production Assistant
Kimberly Terhorst
Additional Music
John W. Morgan
Publicist
Dan Harary
Co-Producer
Jacqueline Zietlow
Sound Recordist
Michael Miller
Director of Photography
Barbu Marian
Sound Re-Recording Mixer
Mark A. Rozett
Amanda Thompson
Orchestrator
Lennie Moore
Digital Supervisor
Brian Griffin
Marilyn Nave
Dave Yamamoto
Edgardo Simone
Additional Photography
Gary Zietlow
Alan Munro
Avelino Deleon