| Actor | Role |
|---|---|
| DDonald A. SwansonSelf | Self |
| NNorm BanksNot listed | Not listed |
 David A. JohnstonSelf (archive footage) | Self (archive footage) |
 Harry R. TrumanSelf (archive footage) | Self (archive footage) |
| MMike DoukasNot listed | Not listed |
| DDan DzurisinSelf - USGS | Self - USGS |