The Three Mesquiteers are forced to track down a train robbery ring after some of the gang hijack their truck for a getaway and the police conclude they are part of the gang, an identification which is just fine with the gang's nameless chief.
'Stony' Brooke
'Tucson' Smith
'Lullaby' Joslin
'Doctor' Algernon Irving
Timothy Irving
Madge Irving (as Lynn Roberts)
The Chief
Lead Henchman Phillips, boxcar heist, etc.
Henchman Mack, boxcar heist, etc.
Henchman Bert, natty dresser, boxcar heist etc.
Henchman Al, outside first truck, etc.
Henchman Spike, gas station, etc.
Henchman
Hawkshaw - Tim's Dog (as Flash)
Henchman Lefty, second truck
Henchman Frank, second truck
Henchman Joe, second truck
Sheriff Jed Benton