During WWI a German agent receives an order to find out when the Russian army will carry out its expected attack against the German lines.
| Actor | Role |
|---|---|
 Brigitte HelmVera Lanskaja | Vera Lanskaja |
 Willy FritschThomas Higgins | Thomas Higgins |
 Oskar HomolkaLanskoi | Lanskoi |
 Theodor LoosDubbin | Dubbin |
 Karl Ludwig DiehlWasiljeff | Wasiljeff |
 Harry HardtKaulwitz | Kaulwitz |
| EEduard von WintersteinHead of Intelligence | Head of Intelligence |
 Alfred BeierleSokaluk | Sokaluk |
 Ferdinand HartTomilin | Tomilin |
 Tamara DesniNatascha | Natascha |
 Friedrich KaysslerBethmann-Hollweg | Bethmann-Hollweg |
| AAenne GoerlingNot listed | Not listed |
 Margarete SchönWife | Wife |
 Ferdinand BonnDr. Kaempff | Dr. Kaempff |
| PPaul MederowNot listed | Not listed |
 Alexander MurskiEwreinoff | Ewreinoff |
 Georg H. SchnellNikolajewski | Nikolajewski |
 Walter SteinbeckNot listed | Not listed |