Only a very bad copy viewed but some credits appear to be fake, e.g. those for Olivier Mathot and Pamela Stanford. As a result of the poor quality of the copy, the cast given is probably incomplete as is the attribution of scenes.
Mark Shanon is among the males present from the Joe d'Amato and Therese Dunn clips along with some or all of the male cast of Elles font tout and Je brūle de partout.
It is not clear who was responsible for putting all this together, but the sound on the copy viewed was Italian; so the finger points at Joe d'Amato.