A con artist masquerades as Russian nobility and attempts to seduce the wife of an American diplomat.
| Actor | Role |
|---|---|
 Erich von StroheimCount Wladislaw Sergius Karamzin | Count Wladislaw Sergius Karamzin |
 Rudolph ChristiansAndrew J. Hughes | Andrew J. Hughes |
 Miss DuPontHelen Hughes | Helen Hughes |
 Maude GeorgePrincess Olga Petchnikoff | Princess Olga Petchnikoff |
 Mae BuschPrincess Vera Petchnikoff | Princess Vera Petchnikoff |
 Dale FullerMaruschka | Maruschka |
 Cesare GravinaCesare Ventucci | Cesare Ventucci |
| MMalvina PoloMarietta | Marietta |
| AAlbert EdmondsonPavel Pavlich | Pavel Pavlich |
 Mary PhilbinCrippled Girl (uncredited) | Crippled Girl (uncredited) |
 Nigel De BrulierMonk (uncredited) | Monk (uncredited) |
| CC.J. AllenAlbert I | Albert I |
 Robert EdesonAndrew J. Hughes | Andrew J. Hughes |
| AAgnes EmersonBit Role | Bit Role |
 Louise EmmonsMother Garoupe | Mother Garoupe |
 Harrison FordArmless Soldier | Armless Soldier |
| MMrs. KentDr. Judd's Wife | Dr. Judd's Wife |
| EEdward ReinachSecretary of State of Monaco | Secretary of State of Monaco |
| LLouis K. WebbDr. Judd | Dr. Judd |