The documentary follows the remarkable journey in America's heartland of automotive pioneer and visionary, Ralph R. Teetor.
| Actor | Role |
|---|---|
 Jeff DanielsRalph Teetor (voice) | Ralph Teetor (voice) |
 Barry CorbinHenry Spangler (voice) | Henry Spangler (voice) |
 Mike RoweNarrator (voice) | Narrator (voice) |
 Rick ZieffNot listed | Not listed |
| RRalph MeyerSelf | Self |
| RRuthie JonesSelf | Self |
| TTom TeetorSelf | Self |
 Lyn St. JamesSelf | Self |
| LLucy Meyer KroppSelf | Self |
| FFranz von HolzhausaenSelf | Self |
| LLeslie Mark KendallSelf | Self |