The phrase "to know the characters" means to have a deep understanding or familiarity with the personalities, traits, and behaviors of individuals within a story, book, play, or movie.
Sentences with «to know the characters»
A great overview and look at some of the less well known characters of the movement. (rottentomatoes.com)
The game will be a story driven experience that will bring you to know the characters from the series. (gametyrant.com)