"A crack team of Italian naval divers plan to attach high explosives to the hulls of Royal navy warships anchored in Gibraltar harbour."
Eleonora Rossi Drago
as Marion
Pierre Cressoy
as Silvano
Carlo Bellini
as
Tino Carraro
as Commander
Giovanni De Fazio
Charles Fawcett
Riccardo Garrone
Paul Müller
as Foreign agent
Rio Nobile
Colombo Pamolli
Paolo Panelli
Mimmo Poli
Giorgio Spaccarelli
Giovanni Tadini
Tsao Hong Tche
Mario Ferrari
as (Voice dubbing for Pierre Cressoy)
Adriana de Roberto
as (Voice dubbing for Eleonora Rossi Drago)
Victor De Sanctis
Underwater Camera
Aldo Tonti
Giovannella Zannoni
Script Supervisor
Francesco Solitario
Key Grip
Duilio Coletti
Director
David Carbonari
Assistant Director
Mario Rappini
Costume Design
Giuseppe Berto
Writer
Nino Rota
Original Music Composer
Gian Giacomo Cossa
Production Design
Enzo Cossa
Producer
Director of Photography
Paolo Uccello
Sound
Francesco De Robertis
Ennio De Concini
Luigi De Laurentiis
Gisa Radicchi Levi
Editor
Marc-Antonio Bragadin
Aldo Calpini