Jem Finch is a fictional character from the novel "To Kill a Mockingbird" by Harper Lee. He is the older brother of Scout Finch and the son of Atticus Finch. Jem is portrayed as a thoughtful and protective sibling who matures throughout the story, grappling with complex social issues in their small Southern town. As the narrative unfolds, Jem's experiences shape his understanding of morality and justice. He often serves as a bridge between Scout and the adult world, helping her navigate their father's teachings and the realities of prejudice and empathy in their community.