| Alec Guinness |
Holland |
| Stanley Holloway |
Pendlebury |
| Sid James (as Sidney James) |
Lackery |
| Alfie Bass |
Shorty |
| Marjorie Fielding |
Mrs. Chalk |
| John Gregson |
Farrow |
| Clive Morton |
Station Sergeant |
| Ronald Adam |
Turner |
| Sydney Tafler |
Clayton |
| Edie Martin |
Miss Evesham |
| Jacques Brunius |
Customs Official |
| Paul Demel |
Customs Official |
| Eugene Deckers |
Customs Official |
| Andreas Malandrinos (as Andrea Malandrinos) |
Customs Official |
| John Salew |
Parkin |
| Arthur Hambling |
Wallis |
| Gibb McLaughlin |
Godwin |
| Marie Burke |
Senora Gallardo |
| Audrey Hepburn |
Chiquita |
| William Fox |
Gregory |
| Michael Trubshawe |
British Ambassador |
| Ann Heffernan |
Kiosk Girl |
| Cyril Chamberlain |
Commander |
| Tony Quinn |
Deputy Commander |
| Moultrie Kelsall |
Deputy Superintendant |
| Christopher Hewlitt |
Inspector Talbot |
| Meredith Edwards |
P.C. Williams |
| Patrick Barr |
Divisional Detective Inspector |
| David Davies |
City Policeman |
| Robert Shaw |
Police Chemist |
| Richard Wattis |
Member of Parliament |
| Desmond Llewellyn |
Customs Official |
