What type of person is Walter Cunningham in To Kill a Mockingbird?
Walter Sr. is a poor farmer who is too proud to take charity. When he hires Atticus to represent him in his entailment (a property inheritance case), he cannot pay him in cash; so he pays him in weekly installments of foodstuffs (walnuts and such).
Later, Walter Sr. joins up with the boys from Old Sarum to form the lynch mob. He follows the crowd when it comes to racism and, therefore, represents blind vengeance. When Scout calls him out by name and mentions his son's name, he loses his anonymity in the mob. He feels ashamed that a young girl has more courage than he, and so he backs down, and the vigilantes disperse.
In the end, we are led to believe that he is the lone juror who kept the others from unanimously voting to convict Tom. Finally, he bowed to public pressure again, but it shows that the Finches have convinced him to treat others as you would want to be treated.