Whether it's a best friend or a nagging coworker, minor characters have an important role to play in every story. The best minor characters always seem to have a unique personality. Their inclusion in the plot feels natural, never forced. What strategies do you use when crafting your minor characters?
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I love minors who try so hard to help but end up hurting... or the opposite: their repeated mistakes actually make things better for the protagonist. I try to look at the way the protag interacts with the situation vs with the world, and I give them a help or a hurt based on their goals.