Full Credits
33 members

Romy Schneider
Katia

Curd Jürgens
Czar Alexander II

Pierre Blanchar
Koubaroff

Antoine Balpêtré
Kilbatchich

Françoise Brion
Sophie

Monique Mélinand
Tsarina Maria

Michel Bouquet
Bibesco

Bernard Dhéran
Stéphane Ryssakov

Margo Lion
Institut Supervisor

Jacqueline Marbaux
Mlle Trépeau

Yves Barsacq
Katourine

Alain Saury
Soloviev

Senta Berger
Court Lady

Hans Unterkircher
Paskievitch
Marcel d'Orval
Yves Gladine

Hubert Noël
Michel Dolgorouki

Gabrielle Dorziat
Liliane Chenevière
(uncredited)
Danièle Dali
(uncredited)

Germaine Delbat
(uncredited)

Françoise Deldick
(uncredited)
Helene Lauterböck
(uncredited)

Robert Le Béal
(uncredited)

Jacques Mancier
(uncredited)

Paul Mercey
(uncredited)

Pierre Moncorbier
(uncredited)
Sophie Poncin
(uncredited)

László Szabó
(uncredited)
Victor Tabournot
(uncredited)

Monique Tarbès
(uncredited)

Irène Tunc
(uncredited)

Egon von Jordan
(uncredited)
11 members
Robert Siodmak
Director
Charles Spaak
Writer
Marthe Bibesco
Novel
Georges Neveux
Writer
Michel Safra
Producer
Michel Kelber
Director of Photography
Joseph Kosma
Original Music Composer
Jean d'Eaubonne
Art Direction
Rosine Delamare
Costume Design
Henri Taverna
Editor
Louisette Hautecœur
Editor