The Tiger is sent to oversee the excavation of a sunken ship. While busy to retrieve the gold tresure in it, he is constantly thwarted by international enemies. Among them is an old Nazi named Hans von Wunchendorf who dreams of world domination. He hides behind the codename "The Orchid" and needs the treasure to sustain a worldwide network of exiled former comrades. Once sanified by the gold his organisation plans to realise the endsieg after all.
| Actor | Role |
|---|---|
 Roger HaninLouis Rapière | Louis Rapière |
 Margaret LeePamela Mitchum / Patricia Johnson | Pamela Mitchum / Patricia Johnson |
 Michel BouquetJacques Vermorel | Jacques Vermorel |
 Micaela PignatelliSarita Sanchez | Sarita Sanchez |
 Carlos CasaravillaRicardo Sanchez | Ricardo Sanchez |
 José Nieto(as Pepe Nieto) | (as Pepe Nieto) |
 José María CaffarelColonel Pontarlier | Colonel Pontarlier |
| GGeorge RigaudDamerec | Damerec |
 Roger DumasDuvet | Duvet |
| AAssad BahadorHans von Wunchendorf / Orchid (uncredited) | Hans von Wunchendorf / Orchid (uncredited) |
 Claude ChabrolRadiologist (uncredited) | Radiologist (uncredited) |
 Michel Etcheverry(uncredited) | (uncredited) |
 Claudio RuffiniSpy (uncredited) | Spy (uncredited) |