| Person | Type | Job | Role(s) |
|---|---|---|---|
 Amato Garbini | Crew | Costume & Make-Up | Makeup Artist |
Angelo Binarelli | Crew | Production | Production Supervisor |
 Burt Bacharach | Crew | Sound | Original Music Composer |
Cesare Rovatti | Crew | Costume & Make-Up | Wardrobe Supervisor |
 Cesare Zavattini | Crew | Writing | Screenplay |
Gabriella Borzelli | Crew | Costume & Make-Up | Hairstylist |
 John Bryan | Crew | Production | Producer |
 Leonida Barboni | Crew | Camera | Director of Photography |
Malcolm Cooke | Crew | Sound | Sound Editor |
 Mario Garbuglia | Crew | Art | Production Design |
Maurizio Lodi-Fè | Crew | Production | Associate Producer, Production Manager |
 Neil Simon | Crew | Writing | Screenplay, Theatre Play |
Norman B. Schwartz | Crew | Sound | Sound Effects Editor |
Orazio Tassara | Crew | Production | Production Manager |
 Piero Tosi | Crew | Costume & Make-Up | Costume Design |
Russell Lloyd | Crew | Editing | Editor |
Stuart Freeborn | Crew | Costume & Make-Up | Makeup Artist |
 Vittorio De Sica | Crew | Directing | Director |
Roberto Cuomo | Crew | Sound | Sound Engineer |
Valentina Sturla | Crew | Production | Casting Director |
Les Wiggins | Crew | Sound | Sound Effects Editor |
Sash Fisher | Crew | Sound | Sound |
Renato Cadueri | Crew | Sound | Sound Mixer |
Joseph Nathanson | Crew | Crew | Special Effects Coordinator |
 Akim Tamiroff | Cast | Actor | Okra |
 Britt Ekland | Cast | Actress | Gina Vanucci aka "Gina Romantica" |
 Carlo Croccolo | Cast | Actor | Cafe Owner |
 Daniele Vargas | Cast | Actor | Prosecutor |
 David Lodge | Cast | Actor | Policeman |
 Enzo Fiermonte | Cast | Actor | Raymond |
Franco Sportelli | Cast | Judge | |
 Giustino Durano | Cast | Actor | Critic |
 Lando Buzzanca | Cast | Actor | Police Chief |
 Lino Mattera | Cast | Actor | Singer |
Lydia Brazzi | Cast | Mamma Vanucci | |
 Mac Ronay | Cast | Actor | Carlo |
 Maria Grazia Buccella | Cast | Actress | Bikini Girl |
 Martin Balsam | Cast | Actor | Harry |
 Maurice Denham | Cast | Actor | Chief of Interpol |
 Mimmo Poli | Cast | Actor | Fat Actor |
 Nino Musco | Cast | Actor | Mayor |
 Paolo Stoppa | Cast | Actor | Polio |
 Peter Sellers | Cast | Actor | Aldo Vanucci / Federico Fabrizi |
 Pier Luigi Pizzi | Cast | Actor | Doctor |
 Piero Gerlini | Cast | Actor | 1st Gaoler |
 Tiberio Murgia | Cast | Actor | 1st Detective |
 Timothy Bateson | Cast | Actor | Michael O'Reilly |
 Tino Buazzelli | Cast | Actor | Siepi |
 Victor Mature | Cast | Actor | Tony Powell |
Vittorio De Sica | Cast | Actor | Himself |
Francesco De Leone | Cast | 2nd Detective | |
Mario Del Vago | Cast | Manuel Ortega | |
Angelo Spaggiari | Cast | Felix Kessler | |
| Person | Type | Job | Role(s) |
