"The Dumas story about Siamese twins separated at birth but who have a strong psychic link."
Geoffrey Horne
as Paolo Franchi / Leone Franchi
Valérie Lagrange
as Edith
Gérard Barray
as Giovanni Sagona
Mario Feliciani
as Dr. Dupont
Emma Danieli
as Gabrielle De Roux
Jean Servais
as Gerolamo Sagona
Amedeo Nazzari
as Orlandi
Nerio Bernardi
as Prof. Perrier
Alberto Farnese
as Gaspare
Germano Longo
as Claudio Franchi
Sandro Moretti
as Claudio
Laura Solari
as Luisa Dupont
Paola Patrizi
as Mariella
Lia Zoppelli
as zia Mary
Luisa Mattioli
as moglie di Domenico
Franco Graziosi
as Domenico
Lucilla Morlacchi
as Lina
Raoul Grassilli
as Raul Sagona
Renato Montalbano
as uomo tarchiato col ferro rovente
Luigi Vannucchi
as Luigi Sagona
Francesca Benedetti
as Adele Franchi
Adriano Micantoni
as Lando
Calisto Calisti
as Vasco
Laura Nucci
as signora Perrier
Giuseppe Pagliarini
as commissario
Aldo Pini
as conte Morny
Regina Dainelli
as (uncredited)
Anton Giulio Majano
Director
Alexandre Dumas
Novel
Fulvio Palmieri
Story
Screenplay
Diego Fabbri
Roberto Gianviti
Leo Cevenini
Producer
Vittorio Martino
Piero Schivazappa
First Assistant Director
Maresa Gallo
Second Assistant Director
Manlio Dalla Pria
Unit Manager
Luigi Puri
Sound
Guglielmo Bonotti
Makeup Artist
Fiamma Rocchetti
Hairstylist
Fulvio Barsotti
Set Decoration
Jeanette Cardone
Script Supervisor
Carla Zamponi
Assistant Editor
Maria Baroni
Costume Design
Ivo Battelli
Production Design
Adriana Novelli
Editor
Angelo Francesco Lavagnino
Original Music Composer
Carlo Savina
Conductor
Bitto Albertini
Director of Photography
Mario Perelli
Production Manager
