- Writer:
- Alan Melville
- Signature music:
- Burt Rhodes
- Incidental music:
- Dennis Wilson
- Designer:
- Roger Ford
- Producer:
- Graeme Muir
- Jacqueline Villiers:
- Moira Lister
- Freddie Phillipson:
- Donald Hewlett
- Mrs. Frayle:
- Molly Urquhart
- Mr. Tiffin:
- A.J. Brown
- Mr. Justice Potter:
- John Glyn-Jones
- Sir Roderick Waite, Q.C.:
- John Dunbar
- Francois:
- Georges Lambert
- Waiter:
- John Devaut
- Jennifer:
- Sally Thomsett
- Henri:
- Robin Stewart
- Clerk of the Court:
- Sydney Dobson
- Juror:
- Billy Milton
- Sir Frederick Snayle, Q.C.:
- Arnold Ridley
- Foreman of the Jury:
- Maurice Quick
- Gang-leader:
- Constantin de Goguel
