In 18th-Century Russia, the Czar, Paul, is surrounded by murderous plots and trusts only Count Pahlen. Pahlen wishes to protect his friend, the mad king, but because of the horror of the king's acts, he feels that he must remove him from the throne.
| Actor | Role |
|---|---|
 Emil JanningsCzar Paul I | Czar Paul I |
 Florence VidorCountess Ostermann | Countess Ostermann |
 Lewis StoneCount Pahlen | Count Pahlen |
 Vera VoroninaMademoiselle Lapoukhine | Mademoiselle Lapoukhine |
 Neil HamiltonCrown Prince Alexander | Crown Prince Alexander |
 Harry CordingStefan | Stefan |
| NNicholas KoblianskyNot listed | Not listed |
| SSam SavitskyNot listed | Not listed |
| AAlexander SkonnikovNot listed | Not listed |
 Tullio CarminatiMinor Role (uncredited) | Minor Role (uncredited) |
 Carmencita JohnsonBaby (uncredited) | Baby (uncredited) |