| Actor | James Mason (as Mick Carby), Mary Clare (as Matron), Margaret Vyner (as Mollie Bennett), Gordon McLeod (as Inspector Cardby), Frederick Valk (as Dr. Moger) |
| Director | Lawrence Huntington |
| Writer | John Argyle, Edward Dryhurst |
| Links | https://www.imdb.com/title/tt0034007/ |
Releases 1
| Title | Format | Cat# | Release Date | Territory | |
|---|---|---|---|---|---|
 | Il ricattatore | DVD |