Commandant (1 episode)
The Gardener (1 episode)
Philip Fletcher (1 episode)
Pop Leibel
Bolasny
Customs Officer Trevitch (1 episode)
Father Benoit
Peter Hulderman
Gerhardt Eisler
Professor Serge Bruloff
Dr. Jungmeyer
Pablo
Dr. Veroff
Dr. Ulding
Gustav Reichman
Reinecke
Peter van Hoorn
Professor Jan Schuyler
Konrad Meinike
Yanos Van Lankovitz
Schiller
Dr. B.A. Vishanoff
Alec Hoffman
Ike Weber
Major Krupp
Fuellgrabe
Maj. Von Buelow (uncredited)
Mr. Nikolai Bukharin (uncredited)
Headwaiter
First Assassin
Plane Saboteur