Stock characters will never be as developed as your protagonist.
These people fill the minor roles of stories. They exist primarily to move the scene forward or deliver information to the main cast.
They are your grocery store clerks who give helpful directions, never to be seen again. They are the soldier delivering a report and causing the heroes to rush off and save the day.
But just because they’re stock characters doesn’t mean you can’t make them memorable. The reader doesn’t spend much time with them, and therefore the author shouldn’t either, but you can still bring them to life.
Populating the page with realistic characters helps deepen the reader’s immersion.
With a stock character, give them one identifiable physical trait that distinguishes them. A battle scar, big ears, or an ornate ring worn on the middle finger. This gives them a semblance of life and alludes to deeper character even if you never explore it as a writer. If they speak, you have an opportunity to define them further.
For example:
A sergeant charged through the door, interrupting the King. He saluted hastily, fist to heart, and announced, “The outer wall is breached, m’lord.”
The King’s knuckles whitened where they gripped the arms of his throne, but he gave the order calmly. “Seal the inner gates.”
“M’lord!” The sergeant turned on his heel and went out.
versus
A sergeant charged through the door, interrupting the King. He saluted hastily, fist to heart, a silver ring on his middle finger catching the light. “The outer wall is breached, m’lord.”
The King’s knuckles whitened where they gripped the arms of his throne, but he gave the order calmly. “Seal the inner gates.”
“M’lord!” The man hesitated. “My family is in the outer city.”
“So is my nephew,” the King said, shoulders sagging as if a great weight pinned him to the gilded chair. “But we must save who we can.”
“M’lord!” The sergeant turned on his heel and went out.
The first example is a straight stock character. Totally forgettable; there only to serve the plot by announcing the breach.
The second example uses 10 words to provide a memorable identifier, and humanizes him in another 10 words.
It also provides an opportunity to add a second layer to the King by showcasing his response. He could be angry at a subject questioning his order, or be indecisive and change his mind. In this example, we hint at the stress he’s under and highlight his willingness to make difficult decisions.
It’s a smoke and mirrors trick to populate the story world with living people instead of caricatures.
This also gives you the option to reuse the character in a later scene instead of a different one-off stock appearance.
After the battle, maybe the King rides out to survey the damage. Just outside the inner gate is the evidence of slaughter, and a glint of silver catches his eye. It’s a ring on a middle finger, the dead man’s arm wrapped around the corpse of a little girl.
Does the King turn away? Is he disgusted with himself, or bemoan the cost of rule? Does he halt the procession to get down from his horse and take the ring as a reminder?
The choice to re-use a humanized stock character lends this scene a greater emotional impact than if it had been another, unrelated one-off appearance.
It’s not necessary to do this with every single character you mention throughout the story. Sometimes you just need a waiter to take the order without drawing attention to themselves. But the more you can provide a semblance of life, the more the reader will become immersed in the world.
Look at your own work. Can you identify a stock character? Someone who makes a brief appearance and whose purpose is to move the story forward?
First, ask yourself if you could replace them with one of the main cast in a natural way.
If not, can you add a small physical description to make them more unique?
If they speak, can you slip in a defining trait or detail to elevate them from a simple stock character? Try to do this in only a few words, 1-2 sentences maximum.
Finally, is there a later scene where they could plausibly return in a meaningful way? Is there another stock character you can replace with the humanized one?
Don’t force this, but keep an eye out for opportunities, as they’ll add threads of connection to your story and will reward observant readers.
