The book is structured with short chapters, turning the eye of the narrator between these 20 dramatis personae.
But a story this big, this consequential, needs a dramatis personae of dramatic people.
Latin for "persons of a drama."
A Latin expression for “cast of characters.” It means literally “the persons of the drama” and is occasionally used at the beginning of scripts for plays as the title of the list of characters.
Note: In general, the “dramatis personae” are the participants in an event: “Winston Churchill, Roosevelt, and Joseph Stalin were the dramatis personae at the Yalta Conference.”