Le Crâneur

Marina Vlady Juliette

Raymond Pellegrin Philippe

Dora Doll Betty Bell

Hélène Vallier Paule

Paul Demange Concierge

Georges Lannes Commissioner Godet

Géo Dorlis Toboggan animator

Jacques Muller Bébert

Guy Dakar

Robert Le Béal English

Marcel Portier Customer who is sleepy

Paul Violette

Simone Logeart Toboggan employee

Alain Nobis Tonio

Paul Frankeur Georges

Luc Andrieux Willy, Toboggan bartender (uncredited)

France Asselin Customer's friend who is sleepy (uncredited)

René Bergeron Boss of the Hôtel du Midi (uncredited)

Jo Charrier Crook in search of an alibi (uncredited)

Edmond Chemi Guest at the banquet (uncredited)