Reading it from this perspective, I saw four things, four essential qualities that seemed to go into the making of good characters: (1), the characters have a strong and defined dramatic need; (2), they have an individual point of view; (3), they personify an attitude; and (4), they go through some kind of change, or transformation.

Those four elements, those four qualities, make up good character. Using that as a starting point, I saw that every main, or major, character has a strong dramatic need. Dramatic need is defined as what your main characters want to win, gain, get, or achieve during the course of your screenplay. The dramatic need is what drives your characters through the story line. It is their purpose, their mission, their motivation, driving them through the narrative action of the story line.