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| As the dreams of Didier Mathure, a brilliant space engineer, literally go up in smoke when his rocket explodes on take-off, he is transferred to head GEPAN, a unit specializing in UFOs. He is tasked with coming up with scientific explanations for the UFO sightings that are currently dominating the headlines. This is a nightmare job for a die-hard rationalist like him, and he is determined to find a way out as soon as he can. |
| Name | Character | Episodes |
|---|---|---|
| Géraldine Pailhas | Élise | 24 |
| Melvil Poupaud | Didier Mathure | 24 |
| Michel Vuillermoz | Marcel | 24 |
| Daphné Patakia | Véra | 24 |
| Laurent Poitrenaux | Bernard Marsaudon | 24 |
| Nicole Garcia | Commandant Delbrosse | 24 |
| Jean-Charles Clichet | François Duluc | 24 |
| Elsa Houben | Margaux, footballeuse | 1 |
| Alice Taglioni | Claire Carmignac | 0 |
| Jean-Christophe Folly | Daniel | 0 |