| CAST | CONNECTIONS | |
|---|---|---|
| Yoko Tani | Die japanische Ärztin/Sumiko... | |
| Oldrich Lukes | Amerikanischer Atomphysiker/Prof.... | |
| Ignacy Machowski | Polnischer Chefingenieur/Prof.... | |
| Julius Ongewe | Afrikanischer... | |
| Michail N. Postnikow | Sowjetischer Astronaut/Prof.... | |
| Kurt Rackelmann | Indischer Mathematiker/Prof.... | |
| Günther Simon | Deutscher Pilot/Robert/Raimund... | |
| Tang Hua-Ta | Chinesische Linguistin/Dr. Tchen... | |
| Lucyna Winnicka | Fernsehreporterin / Joan Moran (as... | |
| Danuta Szaflarska | (voice) | |
| Klaus Bamberg | Bit Part (uncredited) | |
| Fredy Barten | Bit Part (uncredited) | |
| Christoph Bayertt | Bit Part (uncredited) | |
| Karl Brenk | Bit part (uncredited) | |
| Fritz Decho | Reporter (uncredited) | |
| Karin Fredersdorf | Brinkmanns Mutter (uncredited) | |
| Eva-Maria Hagen | Female Reporter (uncredited) | |
| Karl-Helge Hofstadt | Bit Part (uncredited) | |
| Peter Kiwitt | Bit Part (uncredited) | |
| Gertraud Kreissig | Reporter (uncredited) | |
| Ruth-Maria Kubitschek | Frau Brinkmann (uncredited) | |
| Heinz Kögel | Bit Part (uncredited) | |
| Hans Ulrich Laufer | Bit Part (uncredited) | |
| Barbara Leonhard | Sekretärin (uncredited) | |
| Erich Lie | Chinese (uncredited) | |
| Omani Mensah | Afrikanischer Funker (uncredited) | |
| Vera Oelschlegel | Bit Part (uncredited) | |
| Paul Paulsen | Bit part (uncredited) | |
| Lieselotte Schmoock | Bit Part (uncredited) | |
| Werner Senftleben | Funker (uncredited) | |
| San Din Tscho | Chinese (uncredited) | |
| Nico Turoff | Wüstenarbeiter (uncredited) | |
| Eduard von Winterstein | Wissenschaftler / Weiland... | |