Who is a character in code talker who experiences changes?

I thought this was answered. Basically chester becomes more aware of his culture and what it meand to be Navajo.

I would consider Chester, the protagonist, to be a dynamic character. When he's young, Chester is an impetuous boy who is eager to demonstrate his combat prowess. His service during the war remains significant to him throughout his life, as are the memories of the traumatic events which he witnessed overseas. He becomes a sort of cultural ambassador for his people in the 70s.