God Only Knows: Vocal Harmony - The Voice (2003 TV Movie)
Full Cast & Crew
Cast
| Florence Ballard | ... | Self (archive footage) (as The Supremes) | |
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Bill Monroe and His Blue Grass Boys | ... | Themselves (archive footage) |
| The Boswell Sisters | ... | Themselves (archive footage) | |
| Connee Boswell | ... | Self (archive footage) (as The Boswell Sisters) | |
| Martha Boswell | ... | Self (archive footage) (as The Boswell Sisters) | |
| Vet Boswell | ... | Self (archive footage) (as The Boswell Sisters) | |
| Delta Rhythm Boys | ... | Themselves (archive footage) | |
| Solomon Burke | ... | Self | |
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The Chantels | ... | Themselves (archive footage) |
| Ray Charles | ... | Self (archive footage) | |
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The Clovers | ... | Themselves (archive footage) |
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The Dixie Hummingbirds | ... | Themselves (archive footage) |
| Lamont Dozier | ... | Self | |
| Ahmet Ertegun | ... | Self | |
| Don Everly | ... | Self (archive footage) | |
| Phil Everly | ... | Self (archive footage) | |
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The Flamingos | ... | Themselves (archive footage) |
| Four Freshmen | ... | Themselves (archive footage) | |
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Frankie Lymon and the Teenagers | ... | Themselves (archive footage) |
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Harvey Fuqua | ... | Self (archive footage) (as The Moonglows) |
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Gladys Horton | ... | Self (archive footage) (as The Marvelettes) |
| Ben E. King | ... | Self | |
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Frankie Lymon | ... | Self (archive footage) |
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The Marvelettes | ... | Themselves (archive footage) |
| The Mills Brothers | ... | Themselves (archive footage) | |
| Donald Mills | ... | Self (archive footage) (as The Mills Brothers) | |
| Harry Mills | ... | Self (archive footage) (as The Mills Brothers) | |
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Herbert Mills | ... | Self (archive footage) (as The Mills Brothers) |
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John Mills | ... | Self (archive footage) (as The Mills Brothers) |
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Bill Monroe | ... | Self (archive footage) (as Bill Monroe and His Blue Grass Boys) |
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The Moonglows | ... | Themselves (archive footage) |
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The Raelettes | ... | Themselves (archive footage) |
| Lou Rawls | ... | Self | |
| The Rhythm Boys | ... | Themselves (archive footage) | |
| Diana Ross | ... | Self (archive footage) (as The Supremes) | |
| Neil Sedaka | ... | Self | |
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Arlene Smith | ... | Self - Blahi's daughter (archive footage) (as The Chantels) |
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The Staple Singers | ... | Themselves (archive footage) |
| Mavis Staples | ... | Self | |
| The Supremes | ... | Themselves (archive footage) | |
| Brian Wilson | ... | Self | |
| Mary Wilson | ... | Self | |
