In the late sixties, Spanish cinema began to produce a huge amount of horror genre films: international markets were opened, the production was continuous, a small star-system was created, as well as a solid group of specialized directors. Although foreign trends were imitated, Spanish horror offered a particular approach to sex, blood and violence. It was an extremely unusual artistic movement in Franco's Spain.
| Actor | Role |
|---|---|
 Ángel AgudoSelf - Screenwriter | Self - Screenwriter |
 Carlos AguilarSelf - Film Critic | Self - Film Critic |
 José Luis AlemánSelf - Director | Self - Director |
 Colin ArthurSelf - Makeup Artist | Self - Makeup Artist |
 Joe DanteSelf - Director | Self - Director |
 Lone FlemingSelf - Actress | Self - Actress |
| JJosé Luis GaliciaSelf - Art Director | Self - Art Director |
 Jorge GrauSelf - Director | Self - Director |
 May HeatherlySelf - Actress | Self - Actress |
 José Ramón LarrazSelf - Director | Self - Director |
 Eugenio MartínSelf - Director | Self - Director |
 Antonio MayansSelf - Actor | Self - Actor |
 Caroline MunroSelf - Actress | Self - Actress |
 Paco PlazaSelf - Director | Self - Director |
 Jack TaylorSelf - Actor | Self - Actor |
| MManuel M. VelascoSelf - Director | Self - Director |
 Paul NaschyVarious Roles / Self (voice) | Various Roles / Self (voice) |
 Jesús FrancoSelf (archive footage) (uncredited) | Self (archive footage) (uncredited) |