The story revolves around a Basque Roman Catholic priest dedicated to committing as many sins as possible, a death metal salesman from Carabanchel, and the Italian host of a TV show on the occult. These go on a literal "trip" through Christmas-time Madrid to hunt for and prevent the reincarnation of the Antichrist.
Unfortunately the movie The Day of the Beast is not yet available on Disney Plus.
| Directing | Álex de la Iglesia | Director |
| Writing | Jorge Guerricaechevarría | Screenplay |
| Writing | Álex de la Iglesia | Screenplay |
| Sound | Battista Lena | Original Music Composer |
| Editing | Teresa Font | Editor |
| Production | Claudio Gaeta | Producer |
| Production | Fernando de Garcillán | Associate Producer |
| Production | Andrés Vicente Gómez | Producer |
| Production | Carmen Martínez Rebé | Line Producer |
| Production | Antonio Saura | Producer |
| Directing | José María González Sinde | Assistant Director |
| Directing | Jorge Sempere | Assistant Director |
| Costume & Make-Up | Estíbaliz Markiegi | Costume Design |
| Costume & Make-Up | José Quetglás | Makeup Artist |
| Camera | Flavio Martínez Labiano | Director of Photography |
| Visual Effects | Gabe Ibáñez | Animation |
| Art | José Luis Arrizabalaga | Production Design |
| Art | Biaffra | Production Design |
| Camera | Juan Leiva | First Assistant Camera |
| Camera | Ramón Muñoz Bravo | Key Grip |
| Camera | Edmundo Sanz | Grip |
| Camera | Pipo Fernández | Still Photographer |
| Costume & Make-Up | Mercedes Guillot | Hairstylist |
| Costume & Make-Up | José Antonio Sánchez | Makeup Effects Designer |
| Crew | Ignacio Carreño | Stunt Coordinator |
| Crew | Ismael Martínez | Stunts |
| Lighting | Ricardo Rodríguez | Electrician |
| Production | Carmen Martínez Rebé | Production Manager |
| Sound | Jaime Fernández-Cid Buscató | Boom Operator |
| Sound | Ray Gillon | Sound Designer |
| Sound | Gareth Bull | Sound Effects Editor |
| Visual Effects | Rafa Solórzano | Digital Compositors |
| Sound | Jaume Puig | Dolby Consultant |
| Sound | Gilles Ortion | Sound |
| Costume & Make-Up | Miguel Sesé | Assistant Makeup Artist |
| Production | Carmen Sánchez de la Vega | Assistant Production Manager |
| Art | Salvador López | Assistant Property Master |
| Visual Effects | Miguel García-Villaraco Casero | VFX Artist |
| Editing | Irene Blecua | Assistant Editor |
| Production | Ángel Luis De Diego Jr. | Production Assistant |
| Sound | Miguel Rejas | Sound Designer |