Atticus is a character from the novel To Kill a Mockingbird by Harper Lee. He is a lawyer and the father of the main character, Scout Finch. Atticus is known for his strong moral principles and commitment to justice, often standing up for what is right, even when it is unpopular. In the story, Atticus defends a black man, Tom Robinson, who is falsely accused of raping a white woman. Through his actions, he teaches his children about empathy, integrity, and the importance of fighting against prejudice. Atticus serves as a moral compass in the narrative, embodying the themes of compassion and understanding.