I have a visual imagination and when I read a story I try to envision the characters. Depending on their characteristics I may picture them looking like someone I know in my personal life. However after seeing Devil in a Blue Dress, I know the casting director could not have picked a better, sexier person to play Ezekiel (Easy) Rawlins than Denzel Washington. Easy Rawlins is one smooth private investigator who with his close friend and partner in crime, Raymond (Mouse) Alexander has been solving crimes, kicking butt and saving lives in 10ish Easy Rawlins mysteries. After seeing the movie, I've always pictured Denzel as Easy and Don Cheadle as Mouse in my reading.
Then when Walter Mosley released the Fearless Jones mysteries... even though Paris Minton is the narrator and main character who falls into the most trouble, always gets beat up and solves the crime in the end, it's his buddy Fearless who comes through whupping heads and leaving behind a badass reputation. So if anyone ever decides to write a screenplay of this mystery series, they should ask me first because I always picture Michael Jai White and his martial artist skills kicking butt and escaping death time and time again.