Charles Monroe is a male licensed prostitute who lives in the same building as Sharon DeBlass. Charles and Sharon were friendly when Sharon was alive. Dallas speaks to Charles on multiple occasions about Sharon, learning from Charles that Sharon and Georgie Castle once shared customers. When Dallas learns that Sharon kept diaries, she goes to Charles with the hope that he will have information on the diaries whereabouts. At first it appears that Charles has no clue where these diaries might be, but eventually he remembers helping Sharon open a safe deposit box in a bank under a false name. It is in this safe deposit box that Dallas and her partner discover diaries that describe Sharon's illicit affair with her own grandfather.