This first major retrospective of Cash's life, times and music features contributions from his daughter Rosanne Cash and son John Carter Cash, his longtime manager Lou Robin and fellow musicians including Little Richard, Cowboy Jack Clement, Kris Kristofferson, Merle Haggard and Elvis Costello.
| Actor | Role |
|---|---|
 Neil PearsonNarrator | Narrator |
 Johnny CashSelf (archive footage) | Self (archive footage) |
 Kris KristoffersonSelf | Self |
 Rick RubinSelf | Self |
| WW.S. HollandSelf | Self |
 Rosanne CashSelf | Self |
 John Carter CashSelf | Self |
 Sheryl CrowSelf | Self |
 Little RichardSelf | Self |
| BBarbara OrbisonSelf | Self |
| JJack ClementSelf | Self |
 Elvis CostelloSelf | Self |
| LLou RobinSelf | Self |