Imagine reading a mystery novel where every character, aside from the protagonist, fades into the background, indistinguishable and unremarkable. Such a narrative would lack the richness and complexity that draw readers into a world brimming with intrigue and suspense. As a mystery writer, you hold a powerful tool in your arsenal: the supporting character. These characters, often underestimated, play pivotal roles in advancing the plot and in adding depth, tension, and authenticity to your story.

Whether it’s the sidekick who offers comic relief and a sounding board for the protagonist, or the enigmatic suspect who keeps readers guessing, supporting characters are indispensable in crafting a gripping mystery.