Geoffrey Horne

Paolo Franchi / Leone Franchi

Valérie Lagrange

Edith

Gérard Barray

Giovanni Sagona

Mario Feliciani

Dr. Dupont

Emma Danieli

Gabrielle De Roux

Jean Servais

Gerolamo Sagona

Amedeo Nazzari

Orlandi

Nerio Bernardi

Prof. Perrier

Alberto Farnese

Gaspare

Germano Longo

Claudio Franchi

Sandro Moretti

Claudio

Laura Solari

Luisa Dupont

Paola Patrizi

Mariella

Lia Zoppelli

zia Mary

Luisa Mattioli

moglie di Domenico

Franco Graziosi

Domenico

Lucilla Morlacchi

Lina

Raoul Grassilli

Raul Sagona

Renato Montalbano

uomo tarchiato col ferro rovente

Luigi Vannucchi

Luigi Sagona

Francesca Benedetti

Adele Franchi

Adriano Micantoni

Lando

Calisto Calisti

Vasco

Laura Nucci

signora Perrier

Giuseppe Pagliarini

commissario

Aldo Pini

conte Morny

Regina Dainelli

(uncredited)

Anton Giulio Majano

Director

Alexandre Dumas

Novel

Fulvio Palmieri

Story

Anton Giulio Majano

Screenplay

Diego Fabbri

Screenplay

Roberto Gianviti

Screenplay

Leo Cevenini

Producer

Vittorio Martino

Producer

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