1. The character most transformed throughout the story is Todd, he goes from a fragile and quiet person to an extrovert.
 2. Cameron is the static character in the story, he doesn't change, he ends up being a rat and gets Mr. Keating fired.
 3. Mr. Keating is kind of an influence on all the students. He wants them to forget the "normal" way of learning and express themselves for who they are. Mr. Keating is afraid of the students submitting to conformity.
 4.
Todd Anderson: Introverted, quiet, and scared of public speaking.
Neil Perry: Very social but also scared of what his father thinks.
Knox Overstreet: He's a concrete minded person, his biggest fear is rejection by a girl, which is why he never gave up.
Charlie Dalton: In a way he's almost fearless, he has no regard for rules and does what he wants. His anger gets the best of him and he is expelled.