Film serial.
| Actor | Role |
|---|---|
 George O'HaraEnsign John Casey | Ensign John Casey |
 Helen FergusonDoris Warren | Doris Warren |
 J. Barney SherryJohn Warren | John Warren |
| JJean JarvisCountess Zelina | Countess Zelina |
 Coit AlbertsonDon Malverni | Don Malverni |
| RRobert W. CraigJames Corteau | James Corteau |
| JJames T. MackThe Hunchback | The Hunchback |
| JJoe Smith MarbaDeep Water Kelly | Deep Water Kelly |
| RRoland FlanderJack Denton | Jack Denton |
| WWilliam P. BurtNot listed | Not listed |
 Wallace MacDonaldCoast Guardsman | Coast Guardsman |