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