as Alec Prosser-Jones
as Hacker
as Dr. Lucas
as Dr. Tirpitz
as Mr. Arditti
as The Bishop
as Charles Merrow
as Doctor (uncredited)
as Colonel Ross
as Derreck Alwyn
as The Inspector
as Major Andrew Carlyle
as Inspector
as Marshal
as Basil Stewart
as Captain
as Brigadier
as Wolf Eisen
as Dr. Abbott
as Dr. Chisolm
as The Hon. Mr. Justice Yearsley
as Mr. Justice Yearsley
as Peter Naylor
as Frank Houghton
as Hinchcliffe
as Prince Vasili Kuragin
as Von Moltke
as Carter