Who is the narrator in the story, Conversation in the Cathedral?

The story is told essentially by five main narrators: Santiago Zavala, a newspaperman and son of the wealthy industrialist Fermin Zavala; Cayo Bermudez, head of police and intelligence and Minister of Internal Affairs; Amalia Cerda, a servant at the Zavala's house; Ambrosio Pardo, a chauffeur for Bermudez, later for Zavala, and finally for Amalia's husband; and Queta, a prostitute at the brothel run by Hortensia.