| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alberto De Rossi | Crew | Costume & Make-Up | Makeup Supervisor |
 Bernard Vorhaus | Crew | Directing | Assistant Director |
 Dalton Trumbo | Crew | Writing | Story, Screenplay |
 Edith Head | Crew | Costume & Make-Up | Costume Design |
 Enzo Barboni | Crew | Camera | Camera Operator |
 Franz Planer | Crew | Camera | Director of Photography |
 Georges Auric | Crew | Sound | Original Music Composer |
Hal Pereira | Crew | Art | Art Direction |
 Henri Alekan | Crew | Camera | Director of Photography |
 Herbert Coleman | Crew | Directing | Assistant Director |
 Ian McLellan Hunter | Crew | Writing | Screenplay |
Italo Tomassi | Crew | Art | Set Designer |
John Dighton | Crew | Writing | Screenplay |
Joseph de Bretagne | Crew | Sound | Sound Designer, Sound Recordist |
Leo Shuken | Crew | Sound | Orchestrator |
Lester Koenig | Crew | Production | Associate Producer |
Maurizio Lodi-Fè | Crew | Production | Unit Production Manager |
Robert Belcher | Crew | Editing | Assistant Editor |
Robert Swink | Crew | Editing | Editor |
 Robert Wyler | Crew | Production | Associate Producer |
 Victor Young | Crew | Sound | Additional Soundtrack |
Vittorio Valentini | Crew | Crew | Art Direction |
 Wally Westmore | Crew | Costume & Make-Up | Makeup Supervisor |
Walter H. Tyler | Crew | Art | Art Direction |
 William Wyler | Crew | Directing | Director, Producer |
Charles Woolstenhulme | Crew | Production | Unit Production Manager |
Anna Cristofani | Crew | Costume & Make-Up | Hairstylist |
 Alfredo Rizzo | Cast | Actor | Cab driver |
 Andrea Esterhazy | Cast | Actor | Embassy Aide (uncredited) |
 Audrey Hepburn | Cast | Actress | Princess Ann |
 Carlo Rizzo | Cast | Actor | Police Official (uncredited) |
Catherine Wyler | Cast | Actress | Schoolgirl (uncredited) |
 Claudio Ermelli | Cast | Actor | Giovanni |
Dianora Veiga | Cast | Actor | Girl at Cafe Waving at Irving (uncredited) |
 Eddie Albert | Cast | Actor | Irving Radovich |
 George Higgins | Cast | Correspondent at Poker Game (uncredited) | |
 Gianna Segale | Cast | Actress | Girl at Cafe Waving at Irving (uncredited) |
 Gildo Bocci | Cast | Actor | Flower Seller (uncredited) |
 Giuliano Raffaelli | Cast | Faceless Man on the Barge (uncredited) | |
 Gorella Gori | Cast | Actress | Shoe Seller |
 Gregory Peck | Cast | Actor | Joe Bradley |
 Harcourt Williams | Cast | Actor | Ambassador |
 Hartley Power | Cast | Actor | Mr. Hennessy |
 Laura Solari | Cast | Actress | Hennessy's Secretary |
Luigi Moneta | Cast | Actor | Old Man Dancing with Princess (uncredited) |
 Marco Tulli | Cast | Actor | Pallid Young Man Dancing with Princess (uncredited) |
 Margaret Rawlings | Cast | Actress | Countess Vereberg |
 Maurizio Arena | Cast | Actor | Young Boy with Car (uncredited) |
 Mimmo Poli | Cast | Actor | Worker Hugging the Three Out Side Police Station (uncredited) |
 Paola Borboni | Cast | Actress | Charwoman |
 Paolo Carlini | Cast | Actor | Mario Delani |
Piero Pastore | Cast | Actor | Faceless Man on the Barge (uncredited) |
 Richard McNamara | Cast | Actor | Correspondent at Poker Game (uncredited) |
Tania Weber | Cast | Actress | Francesca - Irving's Model (uncredited) |
 Tullio Carminati | Cast | Actor | Gen. Provno |
Armando Annuale | Cast | Admiral Dancing with Princess (uncredited) | |
 Nadia Balabine | Cast | (uncredited) | |
| Person | Type | Job | Role(s) |
