Sebastien Nicolas is a reclusive realtor leading a double life – in his spare time he creates complex disguises based on acquaintances. Combined with minutely studied and rehearsed impersonations, Sebastien can disappear completely into other people's lives. Things spiral out of control after he impersonates the wrong man.
| Actor | Role |
|---|---|
 Mathieu KassovitzSébastien Nicolas / Henri de Montalte | Sébastien Nicolas / Henri de Montalte |
 Bernard MuratHenri de Montalte (Voice) | Henri de Montalte (Voice) |
 Marie-Josée CrozeClémence Corneli | Clémence Corneli |
| DDiego Le MartretVincent | Vincent |
 Siobhan FinneranElizabeth Traven | Elizabeth Traven |
 Éric CaravacaCapitaine Deveaux | Capitaine Deveaux |
 Philippe DuclosLe prêtre | Le prêtre |
 Olivier RabourdinPierre Chambard | Pierre Chambard |
 Geneviève MnichHélène Nicolas | Hélène Nicolas |
 Julianne BinardNot listed | Not listed |