Cecil Parker

Professor Canford

George Cole

'Flash' Harry Cuthbert Edwards

Joyce Grenfell

Sergeant Ruby Gates

Eric Barker

Culpepper-Brown

Thorley Walters

Butters

Irene Handl

Miss Harker-Parker

Dennis Price

Gore Blackwood

Sid James

Alphonse O'Reilly

Julie Alexander

Rosalie Dawn

Lloyd Lamble

Superintendent Samuel Kemp-Bird

Raymond Huntley

Judge Slender

Nicholas Phipps

Major Hargreaves

Lisa Lee

Miss Brenner

John Le Mesurier

Minister of Education

George Benson

Defence Counsel

Elwyn Brook-Jones

Emir

Basil Dignam

Army Officer

Cyril Chamberlain

Army Captain

Michael Ripper

Liftman

Mark Dignam

Prosecuting Counsel

Monte Landis

Octavius

Warren Mitchell

Tailor

Clive Morton

V.I.P.

Wensley Pithey

Chief Constable

Liz Fraser

WPC Susan Partridge

Bill Shine

Usher

Edina Ronay

Lavinia (uncredited)

Erica Rogers

Bobbie (uncredited)

Frank Launder

Director

Frank Launder

Writer

Val Valentine

Writer

Sidney Gilliat

Writer

Malcolm Arnold

Original Music Composer

Gerald Gibbs

Director of Photography

Arthur Evans

Still Photographer

Thelma Connell

Editor

Sidney Gilliat

Producer

Frank Launder

Producer

Leslie Gilliat

Associate Producer

Vale Film Productions

Hallmark Productions

British Lion Film Corporation

Tudor Productions