CHARACTER THROUGHLINE/SPINE All characters need to have a purpose. Why else are they there? And I don’t just mean a purpose to be in your story. I mean their personal purpose, desire, and goal. This, in turn, gives them the reason to be in the story. Without a strong desire or goal, a character would just float along with nothing to do and no reason for being. You may know a slacker or two in your life who actually fits such a description. But in storytelling, especially efficient storytelling like a play or a musical, every character needs to be after something.