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