George Peppard
Reno Davis
Acting
Inger Stevens
Anne de Villemont
Acting
Orson Welles
Leschenhaut
Directing
Perrette Pradier
Jeanne-Marie
Acting
Keith Michell
Morillon
Acting
Geneviève Cluny
Veronique
Acting
Maxine Audley
Mathilde Rosier
Acting
Ralph Michael
Claude de Gonde
Acting
Barnaby Shaw
Paul
Acting
Jacques Roux
Maguy
Acting
Patience Collier
Goonelle
Acting
William Job
Bourdon
Acting
Ave Ninchi
Signora Orragi
Acting
Renzo Palmer
Monk
Acting
Peter Bayliss
Edmond Rosier
Acting
Francesco Mulè
Policeman at Trevi Fountain
Acting
Rosemary Dexter
Daniela
Acting
Raoul Delfosse
Louis Le Buc
Acting
James Mishler
Jesse Hardee
Acting
Jean Louis
Driot
Acting
Jean Hébey
Man in charge of sleeping cars
Acting
Jacques Stany
Georges - the family chauffeur
Acting
Paule Albert
Sophie
Acting
Calisto Calisti
Police Inspector at Rome Station (uncredited)
Acting
Andrea Esterhazy
de Villemont Party Guest (uncredited)
Acting