Wartime secret agents are on a mission to destroy a deadly new type of torpedo, hidden in a Nazi stronghold in France.
| Actor | Role |
|---|---|
 Anthony FranciosaCharles (as Tony Franciosa) | Charles (as Tony Franciosa) |
 Anjanette ComerDenise | Denise |
 Guy StockwellBraden | Braden |
 Paul HubschmidFrederich | Frederich |
 Tom BellIan | Ian |
 Michael ConstantineLadislov | Ladislov |
 Harry TownesGeneral Marchois | General Marchois |
 John MarleyRausch | Rausch |
 Milton SelzerBartowski | Bartowski |
 Patric KnowlesGeneral Lloyd-Griffis | General Lloyd-Griffis |
 Tige AndrewsNicolay | Nicolay |
 Émile GenestGeneral Grieux (as Emile Genest) | General Grieux (as Emile Genest) |
 Lee BergereMiral | Miral |
 Virginia ChristineFrau Gulden | Frau Gulden |
 Harry LandersPilot | Pilot |
| JJean-Michel MichenaudPolish Boy (as Gerald Michenaud) | Polish Boy (as Gerald Michenaud) |
 Gene DynarskiCapek (as Eugene Dynarski) | Capek (as Eugene Dynarski) |
 Ivor BarryAir Marshal Evelyn | Air Marshal Evelyn |
 Simon ScottGeneral Jomar | General Jomar |