| Actor | Christian Borromeo (as Gianni), John Steiner (as Cristiano Berti, TV interviewer), Ennio Girolami (as Department Store Manager), Marino Masè (as John), Fulvio Mingozzi (as Alboreto, The Doorkeeper (Il Portinaio)), Giampaolo Saccarola (as Morgue Doctor (Medico Dell'obitorio)), Lamberto Bava (as Electrician), Michele Soavi (as The Beach Boy) |
| Actress | Mirella D'Angelo (as Tilde), Veronica Lario (as Jane McKerrow), Ania Pieroni (as Elsa Manni, The Kleptomaniac), Carola Stagnaro (as Police Inspector Altieri), Lara Wendel (as Maria Alboreto, Girl Chased By The Dog ( Ragazza Inseguita Dal Cane )), Isabella Amadeo (as Bullmer Secretary), Mirella Banti (as Marion), Ippolita Santarelli (as Prostitute) |
| Assistant | Lamberto Bava (as Assistant Director), Michele Soavi (as Assistant Director) |
| Creator | Giovanni Corridori (as Special Effects), Giuseppe Bassan (as Scenography), Pierangelo Cicoletti (as Costume Design), Carlo Palazzi (as Costume Design), Franco Tomei (as Costume Design), Pierantonio Mecacci (as Make-up (Trucco)), Piero Mecacci (as Make-up (Trucco)) |
| Director | Dario Argento |
| Director Of Photography | Luciano Tovoli |
| Executive Producer | Salvatore Argento |
| Film Editor | Franco Fraticelli |
| Music | Claudio Simonetti, Fabio Pignatelli, Massimo Morante |
| Producer | Claudio Argento |
| Production Company | Sigma Cinematografica |
| Starring | Anthony Franciosa (as Peter Neal), Giuliano Gemma (as Police Commissioner Germani), Eva Robin's (as Beach Girl (Ragazza Della Spiaggia)) |
| Starring (And) | Daria Nicolodi (as Anna, Secretary Of Peter Neal) |
| Starring (With) | John Saxon (as Bullmer) |
| Writer | Dario Argento |
| Links | https://www.imdb.com/title/tt0084777/ · https://en.wikipedia.org/wiki/Tenebrae_(film) |
