| Buster Keaton | Johnny Gray |
| Marion Mack | Annabelle Lee |
| Glen Cavender | Union Capt. Anderson, Chief Spy |
| Jim Farley | Gen. Thatcher, USA |
| Joseph Keaton | Union general |
| Frederick Vroom | Confederate general |
| Charles Smith | |
| Frank Barnes | Annabelle's brother |
| Mike Donlin | Union general |
Union spies pursue an engineer who chased them to recover his stolen train.
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