Henri Vidal

Doctor Guilbert

Florence Marly

Hilde Garosi

Fosco Giachetti

Garosi

Paul Bernard

Couturier, journalist

Jo Dest

Forster

Michel Auclair

Willy Morus

Anne Campion

Ingrid Eriksen

Jean Didier

The Captain

Lucien Hector

Eriksen

Andreas Von Halberstadt

Marcel Dalio

Larga

Jean Lozach

Georges Niemann

Karl Münch

Second of the submarine

Jean Lozach

Radio operator

Max Hermann

Torpedo

Claude Vernier

Leader of the mutineers

Pierre Fuchs

Carrère

(uncredited)

Jeanne Herviale

Doctor's Maid (uncredited)

Kurt Kronefeld

General Von Hauser (uncredited)

Thierry Michel

(uncredited)

Paul Sabas

(uncredited)