Brothers Yvan and Max are total opposites. One is a hypochondriac; the other, a carefree optimist. Their little sister Hélène suffers from kidney problems and urgently needs a transplant. Both are called upon but only one will be chosen.
| Actor | Role |
|---|---|
 Michaël YounMax Perez | Max Perez |
 Ary AbittanYvan Perez | Yvan Perez |
| MMarie DenarnaudHélène Perez | Hélène Perez |
| PPascal LouangeAlice Perez | Alice Perez |
 Denise ChalemSonia Perez | Sonia Perez |
 Michel JonaszRené Perez | René Perez |
 Richard BerryProfesseur Antoine Legendre | Professeur Antoine Legendre |
 Claire TranSecrétaire juge | Secrétaire juge |
 Oscar BertheNot listed | Not listed |