| Person | Type | Job | Role(s) |
|---|---|---|---|
 Billy Wilder | Crew | Directing | Director, Producer, Screenplay |
 Carlo Rustichelli | Crew | Sound | Music, Original Music Composer |
 Ferdinando Scarfiotti | Crew | Art | Art Direction |
 I. A. L. Diamond | Crew | Writing | Screenplay |
 Jack Lemmon | Crew | Production | Executive Producer |
Luigi Kuveiller | Crew | Camera | Director of Photography |
 Ralph E. Winters | Crew | Editing | Editor |
Samuel A. Taylor | Crew | Writing | Theatre Play |
 Alba Maiolini | Cast | Actress | Woman at Airport (uncredited) |
Aldo Rendine | Cast | Actor | Rossi |
 Andrea Esterhazy | Cast | Actor | Hotel Guest (uncredited) |
 Antonino Faà di Bruno | Cast | Actor | Concierge (as Antonino Faa' Di Bruno) |
Bruno Tocci | Cast | Actor | Police Escort (uncredited) |
 Clive Revill | Cast | Actor | Carlo Carlucci |
 Edward Andrews | Cast | Actor | J.J. Blodgett |
 Ettore Geri | Cast | Actor | Airplane Passenger (uncredited) |
Franco Acampora | Cast | Actor | Armando Trotta |
 Franco Angrisano | Cast | Actor | Arnoldo Trotta |
 Giacomo Rizzo | Cast | Actor | Barman |
 Gianfranco Barra | Cast | Actor | Bruno |
Giorgio Dolfin | Cast | Actor | Waiter (uncredited) |
 Giselda Castrini | Cast | Actress | Anna |
 Giuseppe Marrocco | Cast | Actor | Commissionaire (uncredited) |
 Giuseppe Terranova | Cast | Actor | Commissionaire (uncredited) |
Guidarino Guidi | Cast | Actor | Maitre D' |
Harry Ray | Cast | Actor | Dr. Fleischmann |
Jack Lemmon | Cast | Actor | Wendell Armbruster, Jr. |
 Janet Ågren | Cast | Actress | Nurse |
 Juliet Mills | Cast | Actress | Pamela Piggott |
Lino Coletta | Cast | Actor | Cipriani |
 Margherita Horowitz | Cast | Actress | Hotel Guest (uncredited) |
 Maria Tedeschi | Cast | Actress | Hotel Guest (uncredited) |
María Rosa Sclauzero | Cast | Hostess | |
Melù Valente | Cast | Actress | Hostess (as Melu' Valente) |
 Nestore Cavaricci | Cast | Actor | Male Nurse (uncredited) |
 Pippo Franco | Cast | Actor | Mattarazzo |
 Raffaele Mottola | Cast | Actor | Passport Officer |
Sergio Bruni | Cast | Actor | Singer Sergio Bruni (uncredited) |
 Ty Hardin | Cast | Actor | Helicopter Pilot (uncredited) |
 Yanti Somer | Cast | Actress | Nurse (as Yanti Sommer) |
 Pupita Lea Scuderoni | Cast | Actress | Airline Passenger (uncredited) |
 Bruno Alias | Cast | Actor | Man at Airport (uncredited) |
Anna Maria Perego | Cast | Woman at Hotel (uncredited) | |
 Sandra Wolff | Cast | Airplane Passenger (uncredited) | |
 Lidia Zanussi | Cast | Actress | Hotel Guest (uncredited) |
 Ferruccio Fregonese | Cast | Actor | Man at Aiport (uncredited) |
Pasquale Campagnola | Cast | Actor | Police commissioner (uncredited) |
 Enrico Cesaretti | Cast | Actor | Man at Airport (uncredited) |
Silvio Klein | Cast | Actor | Man at Airport (uncredited) |
Armando Giovagnoli | Cast | Actor | Baron Von Schmetterling (uncredited) |
Armando De Martino | Cast | Actor | Alberto Trotta (uncredited) |
 Luigi Scavran | Cast | Sommelier (uncredited) | |
 Gianni Di Segni | Cast | Actor | Policeman (uncredited) |
| Person | Type | Job | Role(s) |
