This is the story of the foundation sire of the Morgan Horse Breed.
| Actor | Role |
|---|---|
 Don MurrayJustin Morgan | Justin Morgan |
 R.G. ArmstrongSquire Fisk | Squire Fisk |
 Whit BissellMr. Mays | Mr. Mays |
 Gary CrosbyBob Evans | Bob Evans |
| EE.W. FirestoneMatthew | Matthew |
 James HamptonAaron | Aaron |
 John HubbardWellington | Wellington |
 Mike RoadDans Forth | Dans Forth |
 John SmithMr. Ames | Mr. Ames |
 Lana WoodKathleen | Kathleen |