"Train de vies" crosses a series of characters who, in pairs, confess to each other their innermost desires and their most secret memories.
| Actor | Role |
|---|---|
 Brigitte RoüanIsa Lemoine | Isa Lemoine |
 Astrid AdverbeAngélique | Angélique |
 Marianne BaslerClarisse | Clarisse |
| SSimone TassimotLa Dame en Noir | La Dame en Noir |
 Jean-Philippe PuymartinPhilippe | Philippe |
| UUgo BroussotFrédéric | Frédéric |
| BBruno DavézéSerge | Serge |
 Paul VecchialiHenri Lemoine | Henri Lemoine |
 Pascal CervoOlivier Lemoine | Olivier Lemoine |