Trailer
Images
 | Frédéric Joliot-Curie as Self - Professor |
 | Raoul Dautry as Self - Rustningsminister |
 | Henki Kolstad as Sersjant Einar Skinnarland |
 | Johannes Eckhoff as Fenrik Knut Hauglund |
 | Claus Wiese as Fenrik Joachim Rønneberg |
 | Øyvind Øyen as Major Professor Leif Tronstad |
| Andreas Aabel as Fenrik Kasper Idland |
| Odd Rohde as Sersjant Birger Strømsheim |
| Rolf Sørlie as Self - Ingeniør |
| Torstein Skinnarland as Self - Damvokter |
| Lew Kowarski as Self - Laboratoriesjef |
| H.H. Halban as Self - Professor |
| Allier as Self - Sprengstoff-offiser |
| Jens A. Poulsson as Self - Fenrik |
| Arne Kjelstrup as Self - Sersjant |
| Claus Helberg as Self - Sersjant |
| Knut Haukelid as Self - Fenrik |
| Hans Storhaug as Self - Sersjant |
| Fredrik Kayser as Self - Sersjant |
| Knut Lier-Hansen as Self |
| David Knudsen as Generaldirektør Axel Aubert |
| Thorleif Reiss as Ingeniør Jomar Brun |
| Finn Bernhoft as En vaktmann |
 | Einar Vaage as En maskinist |
| Halvor Haugen as En gammel mann |
| Ola Hansen as Sjåfør |
 | Harald Schwenzen as Generaloberst Nicolaus von Falkenhorst |
| Alf Nøkle as En utsending |
| Stevelin Urdahl as En militæringenør |
| Folkman Schaanning as En teknisk rådgiver |
| Hartvig Kiran as Kommentarer lest av |
| Camera | |
| Hilding Bladh | Director of Photography |
| Marcel Weiss | Director of Photography |
Directing | |
| Jean Dréville | Director |
| Titus Vibe-Müller | Director |
