The Countess Cosel is based on the true story of the beautiful Anna Constantia of Brockdorff, a German noblewoman who became a mistress of Augustus the Strong, King of Poland and Elector of Saxony in 1704.
| Actor | Role |
|---|---|
 Jadwiga BarańskaAnna Cosel | Anna Cosel |
 Mariusz DmochowskiAugust II | August II |
 Stanisław JasiukiewiczZaklika | Zaklika |
 Daniel OlbrychskiCharles XII | Charles XII |
 Ignacy GogolewskiFriedrich Kyan | Friedrich Kyan |
 Stanisław MilskiCount Hoym | Count Hoym |
 Henryk BorowskiCount Hoym | Count Hoym |
 Władysław HańczaGeneral Schulenburg | General Schulenburg |
| KKrystyna ChmielewskaMarianne Denhoff | Marianne Denhoff |
| MMieczysław KalenikLieutenant La Haye | Lieutenant La Haye |
 Maria HomerskaChristine Eberhardine | Christine Eberhardine |
 Władysław DewoynoHolder | Holder |
 Aleksander GąssowskiCount Imhoff | Count Imhoff |
| AAndrzej KrasickiFurstenberg's Secretary | Furstenberg's Secretary |
 Leon NiemczykCount Lecherenne | Count Lecherenne |
 Józef NowakCount Lagnasco | Count Lagnasco |
 Bronisław PawlikBettger | Bettger |
 Józef PierackiCount von Walsdorff | Count von Walsdorff |
| EEwa TchorznickaDu Parc | Du Parc |
 Danuta WodyńskaBielińska | Bielińska |
 Janusz ZiejewskiAugust Christopher Wackenbarth | August Christopher Wackenbarth |