| OOlivier JankovicNarrator (voice) | Narrator (voice) |
| FFrançois LacôteSelf - TGV program manager, 1982-2000 | Self - TGV program manager, 1982-2000 |
| LLaurent JarsaléSelf - Vice-president, Grande Vitesse Alstom | Self - Vice-president, Grande Vitesse Alstom |
| DDavid GoeresSelf - Project director, TGV M | Self - Project director, TGV M |
| ÉÉliane AllainSelf - Aerodynamics engineer, SNCF | Self - Aerodynamics engineer, SNCF |
| MMurray HughesSelf - Consultant editor, Railway Gazette International | Self - Consultant editor, Railway Gazette International |
 Clive LammingSelf - Historian | Self - Historian |
| JJean-Marie MetzlerSelf - TGV project manager, 1976-1981 | Self - TGV project manager, 1976-1981 |
 Jacques CooperSelf (archive footage) | Self (archive footage) |
 Jean BertinSelf (archive footage) | Self (archive footage) |
 Georges PompidouSelf (archive footage) | Self (archive footage) |
| CChristian CourtoisSelf - Honorary engineer, SNCF Réseau | Self - Honorary engineer, SNCF Réseau |
 François MitterrandSelf (archive footage) | Self (archive footage) |
