Hoppy, Lucky and California search for a mine owned by Trudy Pendleton after it was taken from her by thw swindling gambler Ace Gibson. They find the mine and Hoppy fights Gibson over it.
| Actor | Role |
|---|---|
 William BoydHopalong Cassidy | Hopalong Cassidy |
 Russell HaydenLucky Jenkins | Lucky Jenkins |
 Andy ClydeCalifornia Carlson | California Carlson |
 Eleanor StewartTrudy Pendleton | Trudy Pendleton |
 Morris AnkrumAce Gibson | Ace Gibson |
 William HaadeBill Watson | Bill Watson |
 Dennis MooreJud Carter | Jud Carter |
 Henry HallJohn Blake | John Blake |
 Britt WoodBen Pendleton | Ben Pendleton |
| SSilver Tip BakerBarfly | Barfly |
 Rudy BowmanBarfly | Barfly |
| BBob CardGambler | Gambler |
| JJack HendricksBarfly | Barfly |
| BBruce MitchellCharlie | Charlie |
| CChuck MorrisonGabby Cowhand | Gabby Cowhand |
| TTex ParkerBarfly | Barfly |
 Cliff ParkinsonHenchman | Henchman |
 Jack RockwellLiveryman | Liveryman |
| PPhil SchumacherBarfly | Barfly |
 Dick SimmonsCheated Gambler | Cheated Gambler |
| TTom SmithGambler | Gambler |
 George SowardsWounded Henchman | Wounded Henchman |
 Chief ThundercloudFlying Cloud | Flying Cloud |
 Henry WillsHenchman | Henchman |
| WWen WrightTall Henchman | Tall Henchman |