- Unknown:
- Bernard Merivale
- Adapted By:
- Peggy Wells
- Produced By:
- Charles Lefeaux
- Pewson, the butler:
- Frank Tickle
- Colonel William Mason (Bill):
- Gordon Davies
- Lady Deardon (Tvonne):
- Helen Shingler
- Sir Francis Deardon,Q C (Frank):
- Malcolm Keen
- Metcalfe, the accused:
- Hamilton Dyce
- Judge:
- Derek Birch
- Lord Henningway:
- Arthur Ridley
- Lady Henningway:
- Janet Burnell
- Sir Thomas Grainger:
- Peter Copley
- Counsel for Defence:
- Rupert Davies
- Diana Lewis:
- Elizabeth London
- Sergeant Atkins:
- Ian Sadler
