I measure character development as a correlation of how well I feel like I know the character by the end. How they feel? How they think? What motivates them. Can I hear their voice in my head when I am reading their dialogue. For that, I think that character development less in this novel than in other King novels. Thus, I gave a B. However, I agree with Jean, in that character development is not necessary in this story.

BTW, maybe it was because we know a little backstory about him, but I though Judd was the most clearly developed character and he was an extra.