- Writer:
- Robert Gould
- Producer:
- Terence Dudley
- Film Sequences - Cameraman:
- A.A. Englander
- Film Sequences - Editor:
- Seymour Logie
- Music and Special Effects:
- Radiophonic Workshop
- Designer:
- Lionel Radford
- Lady Nailer:
- June Tobin
- TV newsreader:
- Alex MacIntosh
- Sir Robert Nailer:
- William Dexter
- Air Vice-Marshal Collins:
- Keith Pyott
- General Nant:
- Paul Bacon
- Aide:
- Raymond Duparc
- Jeff Murray:
- Raymond Mason
- Van Heusen:
- Keith Anderson
- Janet Nailer:
- Susan Purdie
- Mrs Stone:
- Joan Frank
- Radio announcer:
- John Graham
- Dr Alan Tullis:
- Ray Roberts
- Nurse:
- Delia Paton
- Bruton-Anderson:
- Frederick Treves
- Garage attendant:
- Geoffrey Lea
- Enid:
- Rowena Torrance
- Housewife:
- Pauline Petrie
- Dr Harding:
- David MacMillan
- Nurse:
- Mary Webster
- Police Sergeant:
- Kenneth Dight
- Matron:
- Gabrielle Blunt
- Sister:
- Armine Sandford
- Police Constable:
- John Wilding
- Royston:
- Ian Clark
- Det Supt Allison:
- Fred Ferris
