Popularity: 7
| Creator: | Álex Pina, Iván Escobar | 
|---|
| A global cataclysm, caused by a fatal accident in Geneva (Switzerland) during the implementation of the particle accelerator will lead to the crew and students of the school-ship Polar Star to live the greatest adventure of their lives. Isolated and aware that we only have each other, the ship will become their only home. | 
| Name | Character | Episodes | 
|---|---|---|
| Mario Casas | Ulises Garmendia | 43 | 
| Blanca Suárez | Ainhoa Montero | 43 | 
| Ivan Massagué | Burbuja Cardeñosa | 43 | 
| Marina Salas | Vilma Llorente | 43 | 
| Luis Callejo | Julián de la Cuadra | 43 | 
| Irene Montalà | Julia Wilson | 43 | 
| Héctor Alterio | Ventura | 9 | 
| Daniel Ortiz | Víctor | 7 | 
| Paloma Bloyd | Dulce | 4 | 
| Rachel Lascar | Capitana | 4 | 
| Belén Rueda | Leonor | 3 | 
| Leticia Dolera | Marimar | 3 | 
| Luis Fernández de Eribe | 2 | |
| Hannah New | Úrsula | 1 | 
| Younes Bachir | Científico del ECND | 1 | 
| Roger Batalla | Antiguo tripulante del Estrella Polar | 1 | 
| Jonathan D. Mellor | Hombre de Liverpool | 1 | 
| Nerea Camacho | Sandra | 1 |