Day One official wallpaper

Day One poster

Day One

(2026)

Cast

Álex González as Ulises Albet

Álex González

as Ulises Albet

Asier Etxeandia as Samuel Barrera

Asier Etxeandia

as Samuel Barrera

Alba Planas as Rebeca

as Rebeca

Jordi Mollà as Diskin

as Diskin

Renata Notni as

Ivan Massagué as

Mireia Oriol as

Melina Matthews as

Melina Matthews

Peter Vives as

Àgata Roca as

David Selvas as

Mercè Martínez as Bet

Mercè Martínez

as Bet

Frederico Barata as Joao

Frederico Barata

as Joao

David Janer as Oriol

as Oriol

Zoe Gatell as Anna

as Anna

Arnau Gol-Karsunke as Rafa

Arnau Gol-Karsunke

as Rafa

Lluís Altés as Jefe Científica

as Jefe Científica

Tana González as Jefe de Seguridad Diskin

as Jefe de Seguridad Diskin

Víctor Benjumea as Recepcionista

Víctor Benjumea

as Recepcionista

Annabel Castan as Abogada Rebeca

as Abogada Rebeca

Alex Ricart as Trabajador BSC

as Trabajador BSC

Christian J.C. as Agente Corrupto

as Agente Corrupto

Òscar Muñoz as Tirso Planell

as Tirso Planell

Adrià Rosell as Volunteer

as Volunteer

Crew

César Martí as Production department

Executive Producer

Cristina Pons as Production department

Executive Producer

Sara Fernández-Velasco as Production department

Sara Fernández-Velasco

Executive Producer

José Velasco as Production department

Executive Producer

Luis Arranz as Writing department

Writer

Juan Salvador López as Writing department

Juan Salvador López

Writer

Luis Moreno as Writing department

Writer

Dan Zlotnik as Crew department

Compositor

David Valldepérez as Camera department

David Valldepérez

Director of Photography

David Gallego as Editing department

Editor

Lluís Rico as Editing department

Editor