Watch Suviyön salaisuus on HBO Max.
Unfortunately the movie Suviyön salaisuus is not yet available on HBO Max.
| Writing | Kaarina Viitainoja | Screenplay |
| Sound | Holger Wernbom | Sound |
| Sound | Väinö Haapalainen | Original Music Composer |
| Art | Eero Leväluoma | Production Design |
| Production | Theodor Luts | Producer |
| Production | Emil Viljanen | Producer |
| Directing | Eino Kari | Director |
| Writing | Aksella Luts | Screenplay |
| Writing | Erkki Uotila | Screenplay |
| Writing | Kaarina Viitainoja | Novel |
| Editing | Eino Kari | Editor |
| Camera | Auvo Mustonen | Director of Photography |
| Camera | Esko Töyri | Director of Photography |
