When written correctly, side characters can actually be some pretty interesting people. Plus, they add a lot to the story. Yes, we all have to put effort into making our protagonists and antagonists multi-dimensional characters, but that doesn’t mean we’re allowed to forget about our side characters. While they might be minor characters in the grand scheme of things, they’re still vital to the telling of the story as they serve many functions such as revealing key details, motivating the protagonist or foiling the protagonist, and sometimes helping to outline certain plots in the story. These secondary characters can either interact with the protagonist through dialogue or through a memory that the main character has of them.
Whichever way you choose to have your main character interact with your side character(s), it’s important to remember the main function of the side character: to help progress the story forward somehow.
With that in mind, here are some tips to making sure your side characters are not one-sided.
Don’t get stuck on the little details:
Yes, writing a rich backstory is important to understanding your side character. But not everything has to be in your story. Just include the parts of the character’s backstory that are relevant to the plot and that move it forward. Don’t get stuck on the little details that don’t matter. It’ll only end up confusing your reader. A good tip to bear in mind is to ask yourself “does this add to the main story or distract from it?”
Don’t make them solely good or solely bad:
The best way to add dimension to your characters is to avoid making them one-sided. If they’re completely good or evil they’ll read completely flat. What I like to do for all my characters, including the side characters, is to give them three good virtues and three negative ones and work from there. The way I see it, if you mix black and white you get grey – and grey is where things get interesting.
Don’t create too many characters:
Creating characters is fun. That is why it’s so easy to get swept up in the desire to write more and more characters, leading to your story to become very convoluted. If you ever read War and Peace, you know just how long that list of characters is. And if you read Tolstoy’s masterpiece, you probably had to refresh your memory a couple times while reading as you tried to keep up with all the characters. While Tolstoy somehow made it work in 587,287 words, most of us are probably working with a much smaller word count goal. Therefore we shouldn’t make it too confusing for our readers to keep up with our cast of characters.
The side characters are there to develop the main character(s):
No matter if you have one side character or five, they all share the same exact purpose: to develop the main character. Side characters can be used to expose key plot points without you necessarily going into exposition mode and “telling” what is happening, but rather “showing” it through the characters. A side character should never be just background noise, each side character should be an active participant in the story and either support your main character or provide an obstacle for them (without necessarily being the antagonist).
Use them to help bring the world to life:
This is particularly helpful if you’re writing fantasy or sci-fi. Secondary characters can be tools used to help bring the world you built to life. Physical descriptions, personal experiences, these are all ways that the side characters can help to better illustrate the world you’ve created.
Try to keep them in one space:
In order to make it easier for your readers to keep up with your secondary characters, it’s a good idea to tie them to one location whenever possible. That means that your side character exists in one spot, like the bar, school, the library, etc. and they never venture beyond this point. But remember, even if they only exist as the woman in the coffee shop, they still need to serve a purpose to moving the story forward. It’s easier for your reader to learn character names etc. when they are in one location. But if you do move a secondary character around, do it with purpose.
Give them a reason for being in a scene:
Speaking of purpose, you should make sure that your secondary character has a purpose for being in a scene. Like I said in the previous point, your side characters should really be kept to one location if it can be helped. But if you do end up moving them around, make sure that there is a reason for them to be in a different scene with your main character. If there is no good reason for your side character to be in the scene then it’ll just read as awkward and confusing.
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