as Bruce Lovell
as Christof Lauritz
as Kühne
as Dr. Klotz
as Sir George Edwards
as Fürst Zeno
as William Sunlet
as Dr. Krishna (voice)
as Baron von Pleskau
as Alexander Engelmann
as Direktor Knauer
as Hans Bast
as Nic Parnassis
as Inspektor Steen
as Konsul Armin von Prossnitz
as Joe Bray
as Arnold Steif, Bürgermeister
as Kapitän Stassi
as Traugott Stiebner
as Dr. Pohlhammer
as Fritz Rottmann
as George Dalton
as Hauptmann Knöpfer
as Herr Ballard
as Hauptmann Lüdemann
as Admiral
as Count Rantzau
as Professor Felseneck
as General Henning von Tresckow
as Dr. Sievers
as Prosecutor
as Conte Carcasona
as Reginald Kinsale
as Leo Seduc
as Dr. Stoll, Verteidiger
as Rudolf Nickel
as Dr. Hans Scholz
as (voice) (uncredited)
as Petersen
as Bürgermeister
as Müller Düker
as General von Felseneck
as Jan Dirksen
as Eduard Meyer-Cleve, Industrieller
as Jepantschin
as Kriminalrat Born
as Hirsch
as Kurt Nietnagel
as Dr. Schilling
as Hugo Zwicknagel
as Selby Clive
as Bernhard Jablonski
as Herr Gabler
as Sir Patrick
as Admiral Pendragon
as Dr. Roylott
