A Mountie (John Preston) catches fur thieves with the help of his horse, Dynamite, and dog, Captain.
| Actor | Role |
|---|---|
| JJohn PrestonSgt. Bruce Morton | Sgt. Bruce Morton |
| CCaptain King of DogsCaptain, Morton's Dog (as Captain the King of Dogs) | Captain, Morton's Dog (as Captain the King of Dogs) |
| JJune LoveYvonne Travis | Yvonne Travis |
| DDynamite the HorseDynamite, Morton's Horse (as Dynamite the Wonder Horse) | Dynamite, Morton's Horse (as Dynamite the Wonder Horse) |
 William DesmondGene Travis | Gene Travis |
 Jimmy AubreyConstable Jimmy Downs (as James Aubrey) | Constable Jimmy Downs (as James Aubrey) |
 Tom LondonMordant | Mordant |
 James SheridanThe Hawk, Mordant Henchman (as Jim Sheridan) | The Hawk, Mordant Henchman (as Jim Sheridan) |
| CChief White FeatherWhite Feather (a Trapper) (as White Feather) | White Feather (a Trapper) (as White Feather) |