by Elizabeth S. Craig, @elizabethspanncraig.com
We’ve all written flat characters before. You know, the helpful librarian who exists only to hand over a crucial book, the grumpy neighbor who complains on cue. Flat characters serve their purpose and exit stage left. But when supporting characters start feeling more like props than people, readers will notice. Here’s how to add dimension without overcomplicating your story.
Spotting the Problem
If you can sum up a character with a single adjective like mean, helpful, or nosy, they’re probably too flat for the work they’re doing in your story. Flat characters speak in one tone, react predictably, and never surprise anyone. That’s fine for the server who takes your protagonist’s coffee order once and disappears. It’s not fine for the best friend, the love interest, or anyone who shows up more than a handful of times.
Give Them Contradictions
Real people don’t make sense all the time, and your characters shouldn’t either. The town gossip might clam up when something genuinely serious happens. The stern police chief could be a pushover for stray cats. These small contradictions take almost no page space but make characters feel human. I like to decide upfront what one trait might contradict my first impression of a character; it keeps me from writing them on autopilot.
Add Personal Stakes
Flat characters often have no skin in the game beyond helping your protagonist. Give them something at risk. The friendly shop owner might be three bad months from closing. The nosy neighbor could be filling empty hours after losing a spouse. When characters have their own concerns, their actions feel motivated rather than convenient.
Drop in Unexpected History
One small backstory detail can do a lot of heavy lifting. The woman who always wears pearls might have been a roadie in the seventies. The quiet accountant could have a military background. You don’t need paragraphs of explanation. Just a single mention or brief anecdote is often enough to make readers see the character differently.
Catch Them Off-Duty
Flat characters tend to appear only when they’re needed for their function. Try showing the stern librarian laughing at a restaurant, or the grumpy mechanic gently helping a kid who fell off a bike. Seeing characters outside their usual role reminds readers that these people have lives beyond your protagonist’s problems.
Let Them Push Back
Rounded characters don’t just serve your main character, they influence them. Maybe the elderly neighbor’s offhand comment changes how your protagonist sees a situation. Maybe the local baker’s stubborn optimism is actually contagious. When supporting characters leave a mark on your protagonist, they earn their place in the story.
Not every character needs equal complexity. But the ones who matter to your plot deserve to feel like people rather than furniture.
What tricks do you use to round out flat characters?
Six practical techniques for adding depth and complexity to flat characters without overcomplicating your story: Share on X
This is such good advice, Elizabeth! As you say, real people are not one-dimensional. We have our contradictions, our personal backgrounds, and so on. So should characters. You posted this at a helpful time for me, too. I'm at the stage in my WIP where I'm getting ready to go through and add those dimensions; it's good to be reminded of them.
Hope it helps, Margot! Good luck with your book.
These are great tips to make characters we don't pay enough attention to more interesting. It's so true that no one is one-dimensional.
Thanks for coming by, Natalie!
You read my mind. I struggle with characters. My secondary characters, sometimes or often, are more interesting than my MC. What I think happens is that I try to protect my MC by putting him or her in a protective bubble, which seems to make them more boring than needed. LOL
But we love our MCs! It’s a natural instinct, ha.