Directed by
| Terre Nash | ... | (as Terri Nash) |
Cast (in credits order)
| Helen Caldicott | ... | Self (as Dr. Helen Caldicott) | |
| Rest of cast listed alphabetically: | |||
| Vannevar Bush | ... | Self - In front of map of Japan (archive footage) | |
| Winston Churchill | ... | Self (archive footage) | |
| Leslie Groves | ... | Self - In front of map of Japan (archive footage) | |
| Ronald Reagan | ... | Self (archive footage) | |
| Franklin D. Roosevelt | ... | Self (archive footage) | |
 |
Richard Tolman | ... | Self - In front of map of Japan (archive footage) |
| Harry S. Truman | ... | Self (archive footage) | |
| Clement Attlee | ... | Self - at Potsdam (archive footage) (uncredited) | |
| Ernest Bevin | ... | Self - at Potsdam (archive footage) (uncredited) | |
| James Byrnes | ... | Self - at Potsdam (archive footage) (uncredited) | |
| Ed Herlihy | ... | Universal Newsreel Narrator (voice) (archive footage) (uncredited) | |
|
|
Ernest O. Lawrence | ... | Self - with Cyclotron Controls (archive footage) (uncredited) |
| William D. Leahy | ... | Self - at Potsdam (archive footage) (uncredited) | |
| Vyacheslav Molotov | ... | Self - at Potsdam (archive footage) (uncredited) | |
| Joseph Stalin | ... | Self - at Potsdam (archive footage) (uncredited) | |
Produced by
| Edward Le Lorrain | ... | producer |
| Kathleen Shannon | ... | executive producer |
Music by
| Karl du Plessis | ... | (as Karl L. Du Plessis) (music composed by) |
Cinematography by
| André-Luc Dupont | ... | (as André Luc Dupont) (camera) |
| Susan Trow | ... | (camera) |
| Don Virgo | ... | (camera) |
Editing by
| Terre Nash | ... | (as Terri Nash) |
Sound Department
| Michael Drolet | ... | assistant location sound |
| Jacques Drouin | ... | location sound |
| Jean-Pierre Joutel | ... | re-recording |
| Jackie Newell | ... | sound editor (as Jacqueline Newell) |
Camera and Electrical Department
| Bonnie Andrukaitis | ... | camera assistant |
| Jean-Maurice de Ernsted | ... | electrician (as Maurice De Ernsted) |
| Simon Leblanc | ... | camera assistant |
| Gérald Proulx | ... | assistant electrician |
Music Department
| Margo MacKinnon | ... | singer (as Margot Mackinnon) |
Additional Crew
| Signe Johansson | ... | unit administrator |
| Terre Nash | ... | archival film researcher (as Terri Nash) |
