2.Richard is the one that did not change at all throughout the story. He didn't care whenever Mr. Keating left and didn't stand when all of the other boys did when he left. He did not take in what Mr. Keating wanted them to.
3.Mr. Keating changed a lot throughout the story also he was shown that not everyone has the opportunity to be able to do what they like and enjoy life.
4.Todd was the extra shy person and he overcame is fear. Neil wanted to be an actor but his parents would not allow him to. He then took a way of escape by comitting suicide. Knox was girl shy and overcame his fear by talking to the "love of his life".