B is for:

B CHARACTERS and B STORY

B Characters are those who the B Story or subplot surrounds. It's a term used by the late screen writing guru Blake Snyder who pinpoints how these subplots and characters are pivotal to the story because the theme often resonates in their dialogue. He defines it in his 15 beat story structure as the Helper Story, the secondary story that the hero needs to undergo so that he (or she) can transform to complete the main story.

The characters involved are often...