- Unknown:
- Michael Gilbert
- Unknown:
- Colin Gordon
- Unknown:
- Edward Kelsey
- Unknown:
- Geoffrey Beevers
- Unknown:
- Robin Browne
- Unknown:
- John Rowe
- Producer:
- Charles Lefeaux
- Michael Templeton:
- William Eedle
- Laura Templeton:
- Katherine Parr
- Sgt-Major O'Farrell:
- Leonard Fenton
- Professor Reynolds:
- John Ruddock
- Bruce Fairfax:
- Brian Hewlett
- Major Crawshaw:
- David March
- The Count:
- Gerald Cross
- Brigadier Partridge:
- Colin Gordon
- Commander George Oldroyd:
- Edward Kelsey
- Sir James Flint:
- Leslie Heritage
- Chief Supt Nicholas:
- David Gooderson
- The Home Secretary:
- Simon Lack
- Leopold Black, mp:
- Douglas Blackwell
- Geordie:
- Nigel Anthony
- Toni:
- Sandra Payne
- Col Sholitov:
- Ronald Herdman
- Professor Gauss:
- Michael Kilgarriff
- Mr Justice Bullimore:
- Martin Friend
