Harper Lee creates such a realistic world of 1930s Maycomb during the Great Depression that it's tough to come up with any unbelievable characters in To Kill a Mockingbird. Virtually all of the characters  reveal unique characteristics, and Lee manages to develop them without the usual stereotypes found in many novels. At times, Jem seems almost too good to be true. Although Dill tempts him into a few mischievous actions, Jem's do-good attitude and his constant attention and affection for his sister often conflicts with the actions of most boys his age. Several of the minor characters, such as Mrs. Farrow and Dill's Aunt Rachel, suffer most from under-developed characterization rather than unbelievability.