Whispering Smith, a railroad detective, is sent to Medicine Bend to suppress the looting of cars.
| Actor | Role |
|---|---|
 Helen HolmesMarion Sinclair | Marion Sinclair |
 J.P. McGowanWhispering Smith | Whispering Smith |
| PPaul HurstMurray Sinclair | Murray Sinclair |
| WWilliam BruntonTony Wickwire | Tony Wickwire |
| FF.M. Van NormanKarg | Karg |
| NN.Z. WoodJ.S. Bucks | J.S. Bucks |
| CChance WardGeorge McCloud | George McCloud |
| BBelle HutchinsonSinclair's Friend | Sinclair's Friend |
 Thomas G. LinghamSheriff Ed Banks | Sheriff Ed Banks |