Katia

Danielle Darrieux

Catherine Dolgorousky, aka 'Katia'

John Loder

Tsar Alexandre II of Russia

Aimé Clariond

Count Schowaloff

Marie-Hélène Dasté

Tsarina Maria Alexandrovna

Jeanne Provost

Mademoiselle Trépeau

Marcel Carpentier

General Potapoff

Thérèse Dorny

Baroness

Marcelle Praince

Grand Duchess

Raymond Aimos

Anatole, Parisian worker

Georges Prieur

Chamberlain

Jacques Erwin

Troubetzkoï

André Carnège

Grand Duke

Pierre Labry

Police sergeant

Georges Flateau

Emperor Napoléon III

Anthony Gildès

Dignitary

Jean Aymé

Robert Seller

Consumer

Paul Demange

Consumer

Edouard Hemme

André Numès

Consumer

Georges Douking

Spy

Paul Escoffier

Doctor

Eddy Debray

Louis, terrorist

Marthe Mellot

Supervisor at the boarding school