Alec Guinness

as Henry 'Dutch' Holland

Stanley Holloway

as Albert Pendlebury

Sidney James

as Lackery

Alfie Bass

as Shorty

Marjorie Fielding

as Mrs. Chalk

Edie Martin

as Miss Evesham

John Salew

as Parkin

Ronald Adam

as Turner

Arthur Hambling

as Wallis

Gibb McLaughlin

as Godwin

John Gregson

as Farrow

Clive Morton

as Station Sergeant

Sydney Tafler

as Clayton

Marie Burke

as Señora Gallardo

Audrey Hepburn

as Chiquita

William Fox

as Gregory

Michael Trubshawe

as British Ambassador

Ann Heffernan

as Kiosk Girl

Jacques Brunius

as Customs Official

Eugene Deckers

as Customs Official

Paul Demel

as Customs Official

Andreas Malandrinos

as Customs Official

Cyril Chamberlain

as Commander

Tony Quinn

as Deputy Commander

Moultrie Kelsall

as Detective Superintendant

Christopher Hewett

as Inspector Talbot

Meredith Edwards

as P. C. Williams

Patrick Barr

as Divisional Detective Inspector

David Davies

as City Policeman

Robert Shaw

as Chemist at Police Exhibition

Richard Davies

as Police Driver

Howard Lang

as Policeman at window (uncredited)

George Spence

as Racegoer (uncredited)