Slasher falls off the train that is carrying him. He is found, broken in spirit, by Donald Cass. The dog is regenerated by Donald's love.
| Actor | Role |
|---|---|
 Rin-Tin-TinRin Tin Tin | Rin Tin Tin |
 John HarronDonald Cass | Donald Cass |
 June MarloweMay Barton | May Barton |
 Pat HartiganJamber Niles | Jamber Niles |
 Victor Potel'Cuckoo' Niles | 'Cuckoo' Niles |
 Heinie ConklinDeputy Sheriff | Deputy Sheriff |
| GGilbert ClaytonReverend Barton | Reverend Barton |
 Edith YorkeMrs. Cass | Mrs. Cass |
| TTaylor N. DuncanSheriff | Sheriff |