Dieter Borsche

as Dr. Robert Kant

as Dr. Maybach

as Chief Inspector Hugh Patton

as David Browning

as Dr. Hellmer

as Viktor Lorenz

as David Judd aka Mr. Lennox / Reverend (Paul) Dearborn

as Pastor Tönning

as König Friedrich Wilhelm

as Kaplan von Imhoff

as Dr. Bachramowitsch

as Abel de Yonkh

as Self (archive footage)

as Roth

as Dr. Wiegand

as Dr. Weck

as Self

as Direktor von Winterfeldt

as Self

as Prof. van Daren

as Henry Baker

as Prof. Leopold

as General Walter Bielstock

as Debouche