Eddie Constantine

Lemmy Caution

Anna Karina

Natacha von Braun

Akim Tamiroff

Henri Dickson

Valérie Boisgel

2nd Seductress Third Class (uncredited)

Jean-Louis Comolli

Prof. Jeckell (uncredited)

Michel Delahaye

von Braun's Assistant (uncredited)

Christa Lang

1st Seductress Third Class (uncredited)

Jean-Pierre Léaud

Breakfast Waiter (uncredited)

László Szabó

Chief Engineer (uncredited)

Howard Vernon

Léonard von Braun (uncredited)