- Writer:
- Henry Cecil
- Producer:
- Archie Campbell
- Norman Strang:
- Peter Williams
- Mr Justice Salisbury:
- Gerald Cross
- Judge's Clerk:
- John Ruddock
- Counsel:
- Leslie Heritage
- Leonard Tiptree:
- John Challis
- Editor:
- John Samson
- Det-Sup Miles/Solicitor:
- Malcolm Hayes
- Lord Chancellor:
- William Fox
- Sir Duncan/Ribblesdale/An MP:
- Philip Leaver
- Minister of Transport:
- Geoffrey Beevers
- Prime Minister/President's Agent:
- Edward Kelsey
- Foreign Secretary:
- Lewis Stringer
- Debtor:
- Peter Bartlett
- Company Chairman/American Governor:
- Peter Marinker
- Belinda Strang:
- Katherine Parr
- Mrs Hopkins:
- Sheila Grant
- Police, courtroom officials, shareholders:
- [members of the cast]