Dr. Farrell
Coroner
Farnish
Michael O'Callaghan
Bromhead
Sullivan
Mr. Hargrove
Coroner
Charles, Lord Chaunduyt
Engineer
Uncle Arthur
Mr. Lorrimer
Security Officer
Minister
Detective Inspector Burrows
Colonel Duncannon
Father Jouvet
The Specialist
Denton
Mr. Webster
Brigadier Blunt
Political Journalist
Coleman
Ministry Receptionist
Scottish Police Inspector (uncredited)
Dr. Crosbie
Dole Officer
Sergt. Macfarlan
