This music documentary celebrates the long and influential career of Long John Baldry, a pioneering British musician whose blues revivalism inspired The Beatles, The Rolling Stones and a young Eric Clapton. Featuring footage of early performances and commentaries from a number of musicians for whom he was a great influence.
| Actor | Role |
|---|---|
 Long John BaldrySelf | Self |
| MMargaret BaldrySelf - Sister | Self - Sister |
| RRoger BaldrySelf - Brother | Self - Brother |
| CChris BarberSelf - Band Leader | Self - Band Leader |
 Lee Conley BradleySelf(archive footage) | Self(archive footage) |
 Jim Byrnesnarrator | narrator |
 Buddy GuySelf | Self |
 Jack ElliottSelf | Self |
| JJack DupreeSelf | Self |
| JJulie DriscollSelf - Singer | Self - Singer |
 Lonnie DoneganSelf(archive footage) | Self(archive footage) |
| DDoug DobellSelf | Self |
| BButch CoulterSelf - Musician | Self - Musician |