The Butterworth family attorney Gaspar Le Sage, and a suitor for the hand of Eleanor Butterworth, persuades a beautiful adventuress, Annabelle Wu, to help him steal the official plans for the coastal defense of California from Eleanor's brother, Lieutenant Butterworth.
| Actor | Role |
|---|---|
 Viola DanaEleanor Butterworth | Eleanor Butterworth |
 Raymond GriffithLord Chumley | Lord Chumley |
 Theodore RobertsAdam Butterworth | Adam Butterworth |
 Anna May WongAnnabelle Wu | Annabelle Wu |
 Cyril ChadwickGasper Le Sage | Gasper Le Sage |
 William BoydLt. Gerald Hugh Butterworth | Lt. Gerald Hugh Butterworth |