What Real-Life Criminals Taught Me About Crafting Fictional Villains.

I was a rookie cop, fresh out of field training the first time someone threatened my life.

Less than a year into the job, I’d been assigned to the midnights—that lovely vampire shift starting at 10:30 p.m. (or 2230, in cop-speak). 

At 10:31, I got the other classic rookie assignment: prisoner watch at the hospital.

Our arrestee was a man in his 50s, arrested for criminal damage to property. He was out of his mind—completely unhinged. The only thing hinged about him were the cuffs locking him to the gurney. He’d caused enough chaos to earn his own private room, mostly so the other patients could get some peace.

I met the grizzled officer I was relieving just outside the door.

“Have you dealt with this guy before?” he asked.

I hadn’t.

“Don’t be surprised if he threatens to kill you.”

I raised my eyebrows. The guy didn’t even know me. How could he already hate me enough to want me dead?

“Just giving you a heads-up,” the officer added. “He threatens to kill everyone.”

Great. I was in for an uncomfortable evening—just me and a belligerent criminal with nothing to do but stare at the rookie and make idle threats. 

But I’m polite. A Christian. I could make a difference. Once anyone gets to know me, they can’t help but like me, right?

I put on my best non-confrontational face and stepped into the room.“Hi, my name is Officer—”

“I’ll kill you!” the guy yelled.

…  I laughed—out loud. 

The man stared, incredulous.

Don’t get me wrong. I’m not some fearless guy who laughs in the face of danger—but I do appreciate solid comedic timing. And this guy had it. His delivery, his face, the sheer inevitability of it—it was funny.

Of course, my reaction didn’t help. His tirade continued, but we got through the shift.

And it got me thinking. Why didn’t I feel threatened? 

It wasn’t because he was cuffed. I’ve stared down genuinely dangerous men in our lockup—guys who’d been searched for weapons and were separated from me by four inches of reinforced steel. Even then, I could feel the hairs on my neck stand up.

And it wasn’t just because I’d been warned. If a guy is truly scary, a warning makes it worse—not better.

I think it’s because this particular “villain” lacked something essential. Actually, he lacked three things—qualities that every great antagonist should have: Cunning. Competence. Conviction.

Let’s break down the qualities of a good villain.  

How to Write Better Antagonists using 3 traits

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1. Cunning

This is my personal favorite antagonist trait.

The smartest villains are often the scariest. A cunning antagonist doesn’t just react—they plan. They manipulate. They anticipate. They play chess while your protagonist is still learning checkers.

Think of Hannibal Lecter. If all he had was a desire to kill, he’d be dangerous. But add in his brilliance, his refined intellect—and just a dash of cannibalism? Now he’s chilling.

Or take Solomon Lane from Mission: Impossible. His mind alone makes him terrifying. He knows the game better than anyone else and plays it with clinical precision. We feel that the invincible Ethan Hunt has finally met his match. 

Now, compare that to the man in my story. His threats were so predictable, I knew what he was going to say before I even walked into the room. He played his whole hand immediately—and it was more of a pair of threes than a royal flush.

There was no surprise, no manipulation—no real danger.

He had zero cunning.

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2. Competence

People often confuse competence with intelligence—but they’re not the same.

Competence is about skill. Proficiency. Effectiveness.

A competent antagonist can actually pull it off—whether “it” is fighting, hacking, robbing banks, leading armies, or casting spells.

They’re not just clever—they’re capable. They can win a fight. They can launch a plan. In plain terms:  They’re not a joke.

Think of the T-800 in Terminator—or its upgrade, the T-1000 in Terminator 2. They’re not known for brains, but their sheer power and relentless pursuit make them terrifyingly competent.

Now, let me stir the pot a bit.

It can be argued that Loki from the MCU lacks competence. Before you go crazy in the comments, hear me out. Loki relies on trickery, borrowed weapons, and outsourced armies to carry out his plans. He scores high in cunning, but low in execution.

Don’t believe me? I refer you to the first time he meets Hulk in The Avengers (2012): “Puny god.”

So what about my “villain”? Competent? Not even close. Frail, impulsive, reactive.
He had no cunning and couldn’t back it up with skill. He was batting 0 for 2. But he did have trait number three.

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3. Conviction

This is the one that might save an otherwise forgettable villain.

If your antagonist feels flat, ask yourself: What do they believe? Why are they doing this?

Conviction is what separates a mustache-twirling cartoon from a villain who feels real.

Everyone is the hero of their own story. Your antagonist should be no different. They need to believe in what they’re doing—even if it’s twisted. Even if it’s evil.

If their motivation is paper-thin, it comes off as lazy writing. “I’m bad. This is just what I do,” isn’t a motive—it’s a placeholder. And your readers will spot it a mile away.

Let’s stay in the Marvel universe (sorry, I’m a superhero nerd).

Take the main villain from Thor: The Dark World, Malekith. He’s powerful, sure—but why does he want to destroy the world?

…Exactly. You don’t remember. His backstory is glossed over, his motives are unclear, and he feels like he exists just to be a villain.

As a viewer, I felt cheated.

Listen up writers—never let your readers feel cheated.

Now let’s look at Magneto, the antagonist from X-men. Magneto survived experimentation in a Nazi concentration camp. He lost his family. He was marked by the very worst of humanity—and now he’s vowed to protect mutantkind from ever suffering the same fate.

To him, that means mutants should rule. Humans must bow—or be buried. He doesn’t want coexistence. He wants justice as he sees it. And he believes in that cause so fiercely, it’s compelling—even when you don’t agree with him.

When you combine that level of conviction with his cunning (always one step ahead of Professor Xavier and the X-men) and his competence (one of the most powerful mutants alive) you get an antagonist no one wants to cross.

You might not agree with him—but you understand him. And part of you might even want to root for him. That’s what makes him unforgettable.

So Back to My Villain…

He had conviction, all right. Misplaced and selfish though it was, it drove him to commit the crime that got him arrested.

He also got a different kind of conviction—after his trial (when he refused a public defender and chose to represent himself). But that’s a story for another blog.

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Let’s recap.

Want to write a better antagonist? A villain that doesn’t fall flat and doesn’t make your reader laugh when he’s trying to instill fear? Give them at least two of the Three C’s:

• Cunning – Make them manipulative, clever, or disturbingly strategic.
  
• Competence – Give them skills. Power. A way to actually win.
  
• Conviction – Anchor them in a belief. A cause. A story that makes sense.
  

If your bad guy has none of the three, they’re just noise. If they have all three, your protagonist won’t be able to forget them.

And neither will your reader.