One of Hoppy's Bar 20 ranch hands is tricked into participating in nefarious activities after being subjected to hypnosis.
| Actor | Role |
|---|---|
 William BoydHopalong Cassidy | Hopalong Cassidy |
 Andy ClydeCalifornia Carlson | California Carlson |
 Rand BrooksLucky Jenkins | Lucky Jenkins |
 Virginia BelmontRene Richards | Rene Richards |
 Earle HodginsDoc Richards | Doc Richards |
| JJames HarrisonSpeed Blaney | Speed Blaney |
 Forbes MurrayRandall | Randall |
| JJohn ButlerClerk | Clerk |
 Herbert RawlinsonYardman | Yardman |
 Richard AlexanderRancher #1 | Rancher #1 |
 Don HaggertyRancher #2 | Rancher #2 |