What actors and actresses appeared in Os Cornos de Cronos - 1991?

The film you are referring to is most likely "Cronos", a 1993 film by Guillermo del Toro, and not "Os Cornos de Cronos".

Here are the main actors and actresses in "Cronos":

* Federico Luppi as Jesús Gris

* Ron Perlman as Deodato "Detta" Octavio

* Claudio Brook as Dr. Ernesto

* Regina Torné as Aurora

* Angélica Aragón as Mercè

* Jorge "El Tata" Hernández as Angel

There is no mention of a film named "Os Cornos de Cronos". If you have more information or a different spelling of the title, I can try to help you find the cast.