| Person | Type | Job | Role(s) |
|---|---|---|---|
 Armando Grilli | Crew | Crew | Special Effects |
Carlo Savina | Crew | Sound | Music |
 Franco Fraticelli | Crew | Editing | Editor |
Giuseppe Bernardini | Crew | Camera | Director of Photography |
Giuseppe Rosati | Crew | Directing | Director, Writer |
Roberto Ranucci | Crew | Art | Art Direction |
Gloria Granati | Crew | Costume & Make-Up | Makeup Artist |
Luciano Anzellotti | Crew | Crew | Special Sound Effects |
Romano Checcacci | Crew | Sound | Sound Mixer |
Marco Sperduti | Crew | Camera | Camera Operator |
Sergio Fraticelli | Crew | Editing | Assistant Editor |
Felice Ruffini | Crew | Production | Production Supervisor |
Ferruccio Mosca | Crew | Production | General Manager |
Giulio Crescenzi | Crew | Production | Administration |
Francesco Cerboni | Crew | Lighting | Electrician |
Mario Filoni | Crew | Camera | Key Grip |
 Adolfo Celi | Cast | Actor | Sir Harold Boyd |
 Alida Valli | Cast | Actress | Lady Clementine De Revere |
 Anthony Steel | Cast | Actor | Supt. Jeff Hawks |
 Antonio Maimone | Cast | Brooks (uncredited) | |
 Claudio Gora | Cast | Actor | |
Elio Stefanizzi | Cast | ||
 Filippo Perego | Cast | Actor | Sir Arthur's Butler (uncredited) |
 Franco Ressel | Cast | Actor | Sgt. Phillips |
 Giuseppe Marrocco | Cast | Actor | Waiter |
 Gloria Guida | Cast | Actress | Polly |
 Janet Ågren | Cast | Actress | Lady Gloria Boyd |
 Joseph Cotten | Cast | Actor | Sir Arthur Dundee |
 Kenneth Benda | Cast | Actor | Old Gentleman (uncredited) |
 Leonard Mann | Cast | Actor | Paul De Revere |
 Maria Tedeschi | Cast | Actress | Lady Clementine's Friend (uncredited) |
 Mario Novelli | Cast | Actor | Saboteur |
 Paul Müller | Cast | Actor | Gibson |
 Tom Felleghy | Cast | Actor | Dr. Hobbes (uncredited) |
 Attilio Pelegatti | Cast | Actor | Policeman |
| Person | Type | Job | Role(s) |
