Identify the protagonist in "Brave New World", and evaluate the moral structure of the protagonist.
The word protagonist implies the reader's identification with a certain character in both his/her strengths and weaknesses. He "roots" for this person and wants him/her "to win."
Some characters do not ever get "fleshed out": they represent types more than seeming real. These are called flat characters. A main character, even a protagonist, may remain a flat character in spite of his/her important role in the story line. This seems to be the case here with the two characters Bernard Marx and John the Savage. The reader takes interest in them without ever really getting under their skin.
Bernard's difference even from his conception isolates him and distinguishes him from others. The reader may anticipate his 'breaking out of the mold' as a liberation from society's constraints but later is disappointed by his selfish motives.
John the Savage is more a prototype of "the noble savage" but lacks the necessary depth to have soul. The same could be said of his mother Linda, although the reader feels some empathy towards her in her loneliness and alienation.
'Brave New Word' does not focus on people but rather on society. The very fact that the characters never "flesh out" reinforces the idea that there is no place for the individual in this kind of world.