Dr Laura Peters raises some really interesting points in this video on the Dickens site when she discusses the character of Miss Havisham
Certainly a villain, but also, in some ways a victim. Her single-minded devotion to revenge shows Dickens interest in the subject of mental illness. Dr Peters also mentions that Miss Havisham is likely based on a real chacter, Eliza Emily Donnithorne who was jilted and, like Miss H, wore her wedding dress for the rest of her life:
Do you know of any other Dickens characters who may be based on real people?