In a warehouse in the heart of Los Angeles, a dwindling handful of devoted craftspeople maintain more than 80,000 student musical instruments, the largest remaining workshop in America of its kind. Meet four unforgettable characters whose broken-and-repaired lives have been dedicated to bringing so much more than music to the schoolchildren of this city.
| Actor | Role |
|---|---|
| DDana AtkinsonSelf | Self |
| DDuane MichaelsSelf | Self |
| PPaty MorenoSelf | Self |
| SSteve BagmanyanSelf | Self |
| KKen BurgetSelf - The Piano Tuner | Self - The Piano Tuner |
| VVincent WomackSelf - L.A.U.S.D. Music Teacher Since 19987 | Self - L.A.U.S.D. Music Teacher Since 19987 |
 Boris KarloffThe Monster (archive footage) (uncredited) | The Monster (archive footage) (uncredited) |
 Tom ParkerSelf (archive footage) (uncredited) | Self (archive footage) (uncredited) |
 Elvis PresleySelf (archive footage) (uncredited) | Self (archive footage) (uncredited) |