| Actor | Anthony Steffen (as Inspector Ranieri), Richard Conte (as Dr. Stone), Pilar Velázquez (as Dr. Sarah Thomas), Jorge Rivero (as Peter Crane), Eduardo Fajardo (as Walter), Luis La Torre (as Robert Gifford), Eva Vanicek (as Sonja), Luciano Pigozzi (as Derek Stevens), Lone Fleming (as Yvonne Chevrel), Álvaro de Luna (as Police Officer) |
| Actress | Pia Giancaro (as Tanya), Terele Pávez (as Wife), Daniela Giordano (as Elizabeth Stevens) |
| Director | Mario Siciliano |
| Film Editor | Otello Colangeli |
| Hair Stylest | Lidia Puglia |
| Makeup Artist | Marisa Marconi |
| Music | Stelvio Cipriani |
| Writer | Mario Siciliano |
| assistant director | Paulino González |
| Links | https://www.imdb.com/title/tt0071471/?ref_=fn_tt_tt_3 |
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