What actors and actresses appeared in Aldo tous risques - 1991?

You're likely referring to the French film "Les Visiteurs" (which translates to "The Visitors" in English), released in 1993, not 1991.

Here are the main actors and actresses in "Les Visiteurs":

* Jacques Villeret as Godefroy de Montmirail

* Christian Clavier as Jacquouille la Fripouille

* Jean Reno as Jean-Pierre

* Valérie Bonneton as Frédérique de Montmirail

* Marie-Anne Chazel as Béatrice de Montmirail

* Daniel Prévost as Le Comte de Montmirail

* Catherine Frot as La Comtesse de Montmirail

If you're thinking of a different movie, please provide more information.