According to the "Dictionnaire" of French Erotic Cinema, XNK0131 is Danielle Corneaux.
Alain Fonduron is supposed to be a pseudonym of Cyril Val aka Alain Plumey.
The "garde-de-chasse", probably the guy with the chauffeur's outfit, is supposed to be Patrick Couter.
There is also a curly blonde who is not yet listed. IAFD lists her as (Elsa) Maroussia, but I'm not so convinced it's the same girl.
The credits also mention a certain Christine Beaugrand. As a hunch, I suspect that's supposed to be Marilyn Jess.