Ramón ligt al bijna 30 jaar krachteloos in zijn bed, onder de hoede van zijn familie. Zijn enige uitzicht op het leven is het raam van zijn kamer, vlakbij de zee die hij ooit zo graag bereisde en waar hij het ongeluk kreeg dat een einde maakte aan zijn jeugd.
Nee, helaas is Mar adentro nog niet beschikbaar op Netflix in Nederland.
| Production | Alejandro Amenábar | Producer |
| Art | Benjamín Fernández | Production Design |
| Production | Emiliano Otegui | Line Producer |
| Writing | Alejandro Amenábar | Screenplay |
| Camera | Javier Aguirresarobe | Director of Photography |
| Directing | Alejandro Amenábar | Director |
| Sound | Alejandro Amenábar | Original Music Composer |
| Art | Emilio Ardura | Set Decoration |
| Costume & Make-Up | Sonia Grande | Costume Design |
| Production | Fernando Bovaira | Producer |
| Production | Luis San Narciso | Casting |
| Writing | Mateo Gil | Screenplay |
| Editing | Alejandro Amenábar | Editor |
| Production | Emiliano Otegui | Production Manager |
| Sound | Juan Ferro | Sound Editor |
| Visual Effects | Pau Costa | Special Effects Supervisor |
| Visual Effects | Rafa Solórzano | Visual Effects Supervisor |
| Costume & Make-Up | Manolo García | Hairstylist |
| Visual Effects | Eduardo Díaz | Digital Compositors |
| Visual Effects | Guillermo Orbe | Digital Compositors |
| Art | Alejandro Fernández | Assistant Art Director |
| Crew | David Campos | Special Effects |
| Visual Effects | Félix Bergés | Visual Effects Supervisor |
| Sound | Guillermo Solana | Boom Operator |
| Sound | Ricardo Steinberg | Sound |
| Visual Effects | Nike Alonso | Visual Effects Producer |
| Crew | Miguel Pedregosa | Stunt Coordinator |
| Art | Chris Fitzgerald | Sculptor |
| Costume & Make-Up | Ana López-Puigcerver | Makeup Department Head |
| Art | Benjamín Fernández | Art Direction |
| Sound | Ricardo Viñas | Dolby Consultant |
| Visual Effects | Thorsten Rienth | Digital Compositors |
| Visual Effects | Helmuth Barnert | Digital Compositors |
| Directing | Walter Prieto | Assistant Director |
| Sound | Alfonso Raposo | Sound mixer |
| Costume & Make-Up | Mara Collazo | Hairstylist |
| Visual Effects | Carlos Trijueque | Digital Compositors |
| Crew | Guiomar Alonso | Stunts |
| Lighting | Rafael García Martos | Gaffer |
| Crew | Paulino Fernández Ibáñez | Telecine Colorist |
| Camera | José Manuel Herrero Gaspar | Underwater Camera |
| Editing | Carlos Agulló | Assistant Editor |
| Camera | Josu Inchaustegui | Steadicam Operator |
| Camera | Teresa Isasi | Still Photographer |
| Sound | Xavier Capellas | Orchestrator |
| Directing | Yuyi Beringola | Script Supervisor |
| Art | Leopoldo Báez | Construction Coordinator |
| Sound | María Steinberg | Sound Effects Editor |
| Art | Pedro Calderón | Painter |
| Costume & Make-Up | Jo Allen | Makeup Designer |
| Crew | David Martí | Makeup Effects |
| Costume & Make-Up | Carlos Montosa | Wigmaker |
| Production | José Miguel Mendiola | Production Accountant |
| Crew | Eva Muslera | Production Controller |
| Editing | Yolanda Cáceres | Color Timer |
| Production | Rafael Toba | Production Coordinator |
| Crew | Alberto Báez | Carpenter |
| Lighting | Miguel Ángel Cano | Electrician |
| Production | Mar Francolí | Location Manager |
| Costume & Make-Up | Ana Urosa | Makeup Artist |
| Crew | Tino Torrescusa | Property Master |
| Visual Effects | Gonzalo Carrión | 3D Supervisor |
| Visual Effects | Rubén Sanz | Visual Effects Producer |
| Crew | Frédéric North | Pilot |
| Crew | Luc Poullain | Aerial Coordinator |
| Camera | James Swanson | Aerial Director of Photography |
| Camera | Carlos Miguel | Key Grip |
| Editing | Felisa Catalinas | Negative Cutter |
| Directing | José Ramón Otegui | Second Assistant Director |
| Sound | Mark Berrow | Musician |
| Art | Natalia Montes | Storyboard Artist |
| Sound | Lucio Godoy | Music Producer |
| Production | Francisco Arnoso 'Pixi' | Production Assistant |
| Camera | Gustavo de la Fuente | Assistant Camera |
| Art | Rubén Rivas | Graphic Designer |
| Production | Carmen Rico | Production Secretary |
| Directing | Larisa Balinge | Assistant Director |
| Crew | Javier Jal | Special Effects Technician |
| Production | Soledad Cebrián | Accountant |
| Costume & Make-Up | Cristina Martínez | Costume Assistant |
| Editing | Miguel P. Gilaberte | Digital Intermediate Colorist |
