Besides being the hero or protagonist of To Kill a Mockingbird, Atticus serves as the moral compass of the book. He is quiet, dignified and strong. Although he is older, he is still a crack shot. He is raising his two children alone, with his maid Calpurnia but no wife. But his most important trait is that he always does what he thinks is right.
Atticus is a testament to courage in many ways. He does many brave things, but his bravest act is to raise his children to treat others with dignity and respect, regardless of social class or race. Atticus exhibits physical courage as well, such as when he stands up to an angry mob and when he shoots a rabid dog.