Anthony Perkins as Charles Van Horn

Michel Piccoli as Paul Regis

Marlène Jobert as Hélène Van Horn

Orson Welles as Théo Van Horn

Guido Alberti as Ludovic Van Horn

Ermanno Casanova as One-Eyed Old Man

Mathilde Ceccarelli as Receptionist

Eric Frisdal as Charles enfant

Aline Mantovani as Hélène enfant

Corinne Koeningswarter as Hélène enfant

Tsilla Chelton as Mère Théo

Giovanni Sciuto as Prêteur

Vittorio Sanipoli as Commissaire

Fabienne Gaugloff as Petite fille du train

Silvana Blasi as La réceptionniste de l'hôtel d'Alsace (uncredited)