- Alastair Sim
- Deniston Russell
- Fay Compton
- Agnes Russell
- Guy Middleton
- Simon Russell
- George Cole
- Herbert Russell
- Hugh Griffith
- Henry Augustus Russell
- Ernest Thesiger
- Endicott
- Beatrice Campbell
- Lucille Grayson
- Mackenzie Ward
- Benson
- A.E. Matthews
- Sir Charles Robson
- Joyce Grenfell
- Elizabeth Robson aka Fluffy
- Eleanor Summerfield
- Sheila Wilcott
- John Laurie
- Gordon Webb
- Veronica Hurst
- Joan Webb
- Anthony Steel
- Roger Godfrey
- Charlotte Mitchell
- Ethel
- Leslie Dwyer
- Police Sergeant
- Colin Gordon
- Harry - Station Constable
- Ronald Adam
- Mr. Wagstaffe - Bank Manager
- Michael Pertwee
- Stewart
- Mary Germaine
- Susan Heath
- Audrey Hepburn
- Cigarette Girl
- Noel Howlett
- Clerk of the Court
- Martin Boddey
- Store Shopwalker
- Jack Arrow
- Policeman in Court
- Paul Beradi
- Club Patron
- John Boxer
- Constable Charles Baker
- Eddie Boyce
- Policeman in Court
- Sebastian Cabot
- Card Player
- Ian Colin
- Bank Robber
- Ivan Craig
- Card Player
- George Crawford
- Bailiff
- Dan Darnelli
- Pedestrian
- Grace Denbeigh-Russell
- Nurse
- Lyn Evans
- Courtroom Jailor
- Ian Fleming
- Doctor
- Danny Green
- Frisby (scenes deleted)
- Robert Gregory
- Shopper at Swan & Edgar
- Pat Hagan
- Police Sergeant in Court
- Charles Hammond
- Reporter in Court
- Victor Harrington
- Shopper in Swan & Edgar
- Scott Harrold
- 2nd Clerk of The Court
- Frank Hawkins
- Store Detective
- Laurence Hepworth
- Shopper
- Arthur Howard
- Businessman on Train
- Frederick Kelsey
- Henry's Butler
- Eveline Kirkwood-Hackett
- Minor Role
- Avice Landone
- Shopper at Swan & Edgar
- Ned Lynch
- Pedestrian
- Louis Matto
- Club Barman
- Eileen Moore
- Shop assistant
- Jim Morris
- Policeman in Court
- Douglas Muir
- Card Player
- William Murray
- Jeweller's Assistant
- Charles Saynor
- Policeman in Court
- Jack Sharp
- Taxi Driver
- John Sharp
- Constable Cafferty
- Christine Silver
- Mrs. Goodwin
- Emile Stemmler
- Club Maitre d'
- Toke Townley
- Pickpocket
- John Warren
- Card Player
- Harry Welchman
- Mr. Devere-Smith (scenes deleted)
