Characters - Creation and Backstory

I would look at some people in your everyday life and base some off them.

Maybe add a few characteristics to make them go with your story.

I know a backstory usually helps with understanding a character better, but like anything, there are some cases where it isn't necessary.

This article answers your question:

Characters Intros and backstory
http://reelauthors.com/script-analysis-coverage/character-intros.php

You should also find this helpful:

How to Create Great Characters
http://reelauthors.com/script-analysis-coverage/how-to-create-great-characters.php

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