Paul Craig is an aviator-inventor who becomes blind due to overwork. He stumbles into a room as a person is being killed by foreign agents - who decide to let Craig live because he cannot identify them. The murder is part of a plot to overthrow the monarchy of fictional Ruvania.
| Actor | Role |
|---|---|
| WWalter BentleyNot listed | Not listed |
| JJohn BruceNot listed | Not listed |
| GGeorge BryantCarlo Gelmini | Carlo Gelmini |
| NNellie FergusonNot listed | Not listed |
| HHarry HalleyNot listed | Not listed |
| EEric HarrisonNot listed | Not listed |
| GGrace SavieriAngela Scardon | Angela Scardon |
| CCecil ScottNot listed | Not listed |
 Arthur ShirleyPaul Craig | Paul Craig |
| CCarlton StuartNot listed | Not listed |
| MMuriel VeckNot listed | Not listed |
| CCora WarnerNot listed | Not listed |
| LLeslie WoodsNot listed | Not listed |