- Producer:
- John Boulting
- Screenplay/Director:
- Roy Boulting
- Screenplay:
- Frank Harvey
- Screenplay:
- Jeffrey Dell
- From the novel by:
- Henry Cecil
- Music composed and conducted by:
- Benjamin Frankel
- Henry Marshall:
- Richard Attenborough
- Roger Thursby:
- Ian Carmichael
- Alfred Green:
- Terry Thomas
- Sally Smith:
- Jill Adams
- Kendall Grimes:
- Miles Malleson
- Tatlock:
- Raymond Huntley
- Alec Blair:
- Eric Barker
- Mrs. Newent:
- Olive Sloane
- Charles Poole:
- Nicholas Parsons
- Judge Ryman:
- John Le Mesurier
- Mrs. Potter:
- Irene Handl
- Judge Emery:
- Basil Dignam
- Roger's father:
- Henry Longhurst
- Roger's mother:
- Edith Sharpe
- Judge Lawson:
- Kynaston Reeves
- Photographer:
- Michael Ward
- Mrs. Barber:
- Everly Gregg
- Cleaver:
- Bob Raglan
- Undertaker:
- Kenneth Griffith
- Undertaker's assistant:
- Ian Wilson
- Solicitor's Clerk (Assize Court):
- John Schlesinger
- Helper (Vicarage Fete):
- Margaret Lacy
- Mr. Johnson:
- John Boxer
- Mr. Venner:
- John Warren
- Mr. Frost:
- George Rose
- Shop assistant (Legal Supplies):
- Leslie Phillips
