An undercover agent for the Cattleman's Protective Association goes into the hideout of rustler chief Bull Thompson posing as an outlaw.
| Actor | Role |
|---|---|
 Reb RussellReb Russell | Reb Russell |
 Yvonne PelletierMarion | Marion |
 Fred KohlerBull Thompson | Bull Thompson |
 Jack RockwellButch Greer | Butch Greer |
 Edmund CobbBlackie (as Ed Cobb) | Blackie (as Ed Cobb) |
| LLillian CastleMinerva Thompson | Minerva Thompson |
| JJerry MeachamThe Kid - Safecracker | The Kid - Safecracker |
 Dick BotillerJuan - Henchman (as Dick Bottiler) | Juan - Henchman (as Dick Bottiler) |
| RRebelRebel - Reb's Horse | Rebel - Reb's Horse |