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