Meet the Cast of Netflix’s ‘The Final Problem’ (With Photos)

Netflix has unveiled its newest mystery thriller, and the streamer is leaning on a stacked Spanish ensemble to bring the story to life. Leading the ensemble cast is José Coronado as Basil, with María Valverde bringing depth to the enigmatic presence of her character. The series is based on Spanish author Arturo Pérez-Reverte’s novel of the same name and premieres as a four part period thriller on September 25.

The show places thirteen strangers inside a secluded hotel during a violent 1959 storm, and the resulting whodunit has drawn comparisons to classic locked room mysteries. With the premiere now available to stream, curiosity has turned toward the faces bringing this story to the screen. Below is a rundown of the principal cast members of ‘The Final Problem,’ along with the characters they play and the credits that brought them here.

Jose Coronado

Coronado’s character, Basil, is not looking for another acting role, but he unexpectedly finds himself acting as an investigator once Elisa Mander’s death starts looking suspicious. The character is a retired actor once known for playing Sherlock Holmes on the big screen, which gives the mystery a layer of self aware irony as a former fictional detective is thrust into a real one.

Coronado has recently been seen in projects such as Entrevías and The Snow Girl, along with Living Without Permission. His casting as the lead investigator fits a career built largely around grounded, morally complicated men rather than flashy heroics.

As the central figure trying to untangle what happened at the storm bound hotel, Coronado carries much of the show’s tension. His performance anchors the ensemble as the story moves between suspects and shifting motives.

María Valverde

Valverde plays Adela, and her performance has been noted for bringing depth to the character’s enigmatic presence within the story. Netflix has described her recent work as including Sounds Like Love and All We Cannot See.

Her character exists within the tightly wound group of hotel guests whose secrets slowly surface as the investigation deepens. Valverde’s filmography has increasingly leaned toward dramas with emotional restraint, which suits a mystery built on quiet suspicion rather than outright spectacle.

Her presence rounds out a cast where every character seems to be hiding something, and her scenes with Coronado’s Basil form part of the show’s emotional core.

Martiño Rivas

Rivas takes on the role of Foxá in the series. He is known to audiences for his work on Nacho and Cable Girls.

Foxá is part of the ensemble of guests and staff trapped in the hotel once the storm cuts off any escape. The setting itself, where no one can leave and no one can arrive, turns every guest and member of staff into a suspect as the crime proves more intricate than anyone could have imagined.

Rivas has built a career on television heavy projects in Spain, and his casting here continues that pattern, placing him in an ensemble driven story rather than a single lead role.

Maribel Verdú

Verdú plays Auslander in ‘The Final Problem.’ She is recognized internationally for roles in films such as When No One Sees Us and Now and Then, alongside her earlier and widely known work.

Verdú is arguably the most globally recognizable name in the cast, having built a career spanning both Spanish television and international film. Her involvement adds a layer of prestige to a series that is otherwise built around a newer wave of Spanish talent.

Her character Auslander is folded into the group of hotel occupants whose interactions become increasingly fraught as suspicion spreads. As one of the more seasoned performers on set, Verdú’s scenes carry a weight that comes from decades of screen experience.

Gonzalo de Castro

De Castro plays Fonseca, described as an ambitious film director within the story. His recent credits include Políticamente incorrectos and La ternura.

Fonseca’s presence among the stranded guests adds a professional dynamic to the hotel’s tangled web of relationships, since a film production backdrop threads through the narrative. That detail gives the mystery an additional texture, blending the closed circle whodunit format with the world of filmmaking itself.

De Castro rounds out a supporting cast that also includes Cristina Kovani, José Condessa, and Pepón Nieto, each filling out the hotel’s population of guests and staff who become entangled in the investigation once Elisa Mander’s death is ruled suspicious.

With all four episodes of ‘The Final Problem’ now streaming, viewers finally get to see how this cast handles a mystery built on isolation, suspicion, and a storm that traps everyone with nowhere to go, so which performance among Basil, Adela, Foxá, Auslander, or Fonseca do you think unravels the case first.