as Colonel Ross

as Hinchcliffe

as Dr. Abbott

as Von Moltke

as Charles Merrow

as Dr. Lucas

as Charles Merrow

as Oxted

as Prince Vasili Kuragin

as Dr. Chisolm

as The Hon. Mr. Justice Yearsley

as Mr. Justice Yearsley

as Doctor (uncredited)

as Basil Stewart

as Hunter

as Hacker

as Brigadier

as The Inspector

as Charles Baldon

as Oliver Manson

as Wolf Eisen

as Frank Houghton

as Dr. Tirpitz

as The Stranger

as Alec Prosser-Jones

as Major Andrew Carlyle

as Inspector

as Derreck Alwyn

as Mr. Arditti

as Peter Naylor