Which characters have courage to break ociety code of ethics for this setting in the to kill a mockingbird?

Atticus Finch and Boo Radley demonstrate courage in breaking societal norms in "To Kill a Mockingbird." Atticus defends Tom Robinson, a black man wrongly accused of a crime, challenging the deeply ingrained racial prejudices of the community. Boo Radley, by ultimately saving Scout and Jem from Bob Ewell's attack, defies his reclusive reputation to protect the children, highlighting the judgmental nature of the society.