A young man and his three younger siblings are plagued by a sinister presence in the sprawling manor in which they live.
Unfortunately the movie Marrowbone is not yet available on HBO Max.
| Directing | Sergio G. Sánchez | Director |
| Writing | Sergio G. Sánchez | Writer |
| Sound | Fernando Velázquez | Music |
| Sound | Oriol Tarragó | Sound Designer |
| Sound | Oriol Tarragó | Supervising Sound Editor |
| Camera | Xavi Giménez | Director of Photography |
| Production | Belén Atienza | Producer |
| Production | Álvaro Augustin | Producer |
| Production | Ghislain Barrois | Producer |
| Editing | Elena Ruiz | Editor |
| Production | Karen Lindsay-Stewart | Casting |
| Art | Patrick Salvador | Production Design |
| Art | Jaime Anduiza | Art Direction |
| Costume & Make-Up | Sonia Grande | Costume Design |
| Costume & Make-Up | Denise Kum | Prosthetic Designer |
| Sound | Pelayo Gutiérrez | Sound Designer |
| Sound | Pelayo Gutiérrez | Supervising Sound Editor |
| Sound | Tamara Arévalo | Boom Operator |
| Sound | Lucas Fernández | Boom Operator |
| Sound | Andrea Paralta | Dialogue Editor |
| Sound | Marc Gonell | Foley |
| Sound | Marta Monistrol | Foley |
| Sound | Boi Martínez | Foley Editor |
| Sound | Marc Orts | Sound Re-Recording Mixer |
| Visual Effects | Enric Masip | Special Effects Supervisor |
| Camera | Edu Canet | Camera Operator |
| Camera | Sergi Bartrolí | Second Unit Director of Photography |
| Lighting | Chisko Blanco | Electrician |
| Lighting | Nacho Martinez | Electrician |
| Camera | Francesc Carreras | First Assistant Camera |
| Camera | Beatriz Delgado | First Assistant Camera |
| Camera | Quim Vives | Still Photographer |
| Production | Emily Jacobs | Casting Associate |
| Costume & Make-Up | Ana Cuerda | Assistant Costume Designer |
| Costume & Make-Up | Wanda Morales | Assistant Costume Designer |
| Costume & Make-Up | Sara Cabrera | Set Costumer |
| Editing | Ana Charte | First Assistant Editor |
| Directing | Glòria Blanes | Script Supervisor |
| Directing | Cristina Sánchez Belmonte | Script Supervisor |
| Visual Effects | Àlex Villagrasa | Visual Effects Supervisor |
| Sound | Sergio Burmann | Sound Mixer |
| Directing | Kike Maíllo | Second Unit Director |
| Costume & Make-Up | Nuria Mbomio | Makeup & Hair |
| Costume & Make-Up | Grace McComisky | Prosthetic Makeup Artist |
| Costume & Make-Up | Chris Fitzpatrick | Prosthetic Supervisor |
| Production | Sandra Hermida | Production Manager |
| Production | Margarita Huguet | Unit Production Manager |
| Directing | F. Javier Soto | First Assistant Director |
| Directing | Olga Pujalte López | Second Assistant Director |
| Directing | Pep Parés Font | Third Assistant Director |
| Art | Edu Glez | Graphic Designer |
| Art | Roberto Álvarez Espinedo | Property Master |
| Crew | Marc Carreres | Visual Effects Editor |
| Crew | Dan Adams | Utility Stunts |
| Crew | Roberto Bonacini | Stunts |
| Crew | César Solar | Stunt Coordinator |
| Crew | Cuco Usín | Stunt Coordinator |
| Camera | Javier González Leonardo | Key Grip |
| Camera | Celine Gravez | Second Assistant Camera |
| Lighting | Martí Maluquer | Gaffer |
| Production | Almudena Cormenzana | Production Coordinator |
| Production | J. A. Bayona | Executive Producer |
