J. Warren Kerrigan plays the standard Vance hero, a devil-may-care Irish mercenary named Terrence O'Rourke. While knocking about in India, O'Rourke comes into possession of the Pool of Flame, a valuable ruby stolen from a Hindu temple. Typically, whosoever possesses this gem is marked for death, but O'Rourke hopes to beat the odds by utilizing the Pool of Flame to insure, rather than impede, his good luck.
| Actor | Role |
|---|---|
 J. Warren KerriganTerence O'Rourke | Terence O'Rourke |
 Lois WilsonPrincess Beatrix | Princess Beatrix |
 Harry CarterDuke Victor | Duke Victor |
 Maude GeorgePrincess Karan (as Maud George) | Princess Karan (as Maud George) |
 Bertram GrassbyChambret | Chambret |
| HH.L. HollandDanny | Danny |
| FFrank MacQuarrieDes Trebes | Des Trebes |
| EEarl RogersCaptain Fritz Noelke | Captain Fritz Noelke |