He was a just a big, scarey looking man, but he was so shy and he kept to himself. He was actually very kind hearted person who loved Scout and Jem, and he always looked out for them.
Boo Radly was a mysterious character in the book who is rarely seen because he is so reclusive and stays in the house. He is a kind of scary legend that the kids make up stories about.
He was a strange quiet man that lived by himself. The other children in the same town and street as Boo talked about him, made fun of him and were frightened of him.