The success of literary works greatly depends on the quality of its characters. It is important to have major and minor characters with different levels of involvement in the novel. It is also important to have characters, both major and minor, with distinct and contrasting personalities. Minor characters can have a large effect on how the reader perceives the novel by highlighting interesting characteristics of the major characters. In the novel, Dr. Jekyll and Mr. Hyde, the minor characters are not only used as foils for the major characters and show their important character traits, they also advance the plot. Although Poole, Dr. Lanyon and Mr. Guest are considered minor characters in the novel, they play a major important role in this battle between good and evil.

Poole is the character in the novel Dr. Jekyll and Mr. Hyde that stands as the intermediary between Mr. Utterson and...