Capitano Austriaco
Prince Luitpold
Coleman (as Gerard Haerther)
Capt. Kreuger
Baron von Schulenberg
German Officer in Town (uncredited)
Col. von Elm
Colonnello comandante (uncredited)
German officer
Lawrence Blackman
Captain del Sommergibile
General Schwartz
Major Lloyd
Max Gunther
Maj. Skorch
Hippia
Colonel Kleist
Prince Sergei Vorontzov
Colonel Skimmel
Mr. Bishop
Lothar
conte Roskoff
Mr. Silver
Lieutenant Hapke
Col. Blackgrave
Ernest Ward