Blog

Villain Playbook: The Inquisitor — Creating a Memorable D&D Villain

There is a big difference between someone who believes they’re doing the right thing and someone who believes they have the absolute right to decide what is right for everyone else.

The Inquisitor is the kind of villain who can make an entire kingdom afraid to speak freely. They might serve a religious order, a royal government, a powerful magical institution, or an organization created to protect the innocent. They have authority, resources, devoted followers, and an unwavering belief that the people they hunt deserve whatever happens to them.

And the most frightening part? They might genuinely believe they’re saving the world.

Welcome back to the Villain Playbook, our continuing series exploring memorable antagonists for Dungeons & Dragons and other tabletop RPGs. In our previous installment, we explored The Revolutionary, a villain who believes the existing system must be torn down to create something better. The Inquisitor approaches the problem from a different direction. Rather than overthrowing the established order, this villain believes it needs to be protected, purified, and defended from those they consider dangerous.

The Inquisitor doesn’t necessarily want to rule the kingdom. They want to decide who deserves to live in it.

What Is the Inquisitor Villain Archetype?

An Inquisitor is a person who investigates, identifies, and eliminates threats according to a particular doctrine or set of beliefs. Their targets might be heretics, witches, cultists, forbidden spellcasters, political dissidents, monstrous creatures, or anyone accused of corrupting society.

In a D&D campaign, an Inquisitor could be a high-ranking member of a religious order, a royal investigator, a mage hunter, or the commander of an organization tasked with identifying supernatural threats.

Their authority might come from a king, a church, a council of wizards, or even a divine being. They may have the legal power to arrest people, seize property, interrogate witnesses, and sentence individuals without a traditional trial.

The important thing is that the Inquisitor believes their mission is necessary.

Perhaps they hunt necromancers because an undead plague once devastated their homeland. Maybe they pursue anyone associated with a particular demon because a cult nearly destroyed their city. They could believe that certain magical practices inevitably lead to corruption, or that anyone who questions their faith threatens the stability of the entire kingdom.

Some Inquisitors are motivated by genuine fear. Others enjoy the authority their position provides. The most interesting ones combine both.

They have seen terrible things happen, and they’ve convinced themselves that preventing another catastrophe justifies almost any action.

Why the Inquisitor Makes a Great D&D Villain

The Inquisitor creates a different kind of threat from the typical monster or evil overlord. They don’t need to attack the party to make their lives difficult. They can use laws, influence, accusations, and public opinion to turn an entire community against the characters.

Imagine the party arrives in a town where several people have been arrested for practicing forbidden magic. The local authorities claim the prisoners are members of a dangerous cult. The villagers are frightened, and nobody wants to question the arrests.

The party discovers that one of the prisoners is an innocent healer who has been helping the community for years. Another is a young sorcerer who recently manifested an unusual magical ability. The Inquisitor overseeing the investigation insists that both are threats that must be contained.

The characters might initially assume this is a misunderstanding. Then they discover that the Inquisitor has been conducting similar investigations throughout the region, with dozens of people imprisoned or executed.

The villain isn’t hiding in a dungeon. They’re operating openly, protected by authority and supported by people who believe they’re doing important work.

That makes the conflict more complicated. The party can’t necessarily solve the problem by defeating the Inquisitor in combat. Doing so might turn them into fugitives, create a public backlash, or leave the organization free to appoint someone even worse.

The Inquisitor is especially effective when the party has developed a reputation as heroes. Their previous adventures may have involved powerful magic, strange artifacts, dangerous alliances, or encounters with creatures that ordinary people fear. The villain can use those experiences as evidence that the characters themselves are dangerous.

Suddenly, the heroes are the ones being investigated.

Give the Inquisitor a Reason to Hunt

An Inquisitor needs a clear doctrine. What do they believe threatens the world, and why are they convinced that their methods are justified?

Perhaps they hunt anyone who practices necromancy because they believe death must remain sacred. Maybe they pursue warlocks because they see every pact as a doorway for fiendish influence. They might be dedicated to eliminating shapeshifters, believing that creatures capable of stealing identities make trust impossible.

You can also make the threat more specific to your campaign setting. An Inquisitor might hunt people exposed to a strange magical energy, those who have been touched by aberrations, or individuals who possess unusual mutations. They may believe these people are dangerous even when they have done nothing wrong.

The Inquisitor’s doctrine doesn’t have to be entirely unreasonable. In a fantasy world filled with mind control, possession, curses, and supernatural corruption, some threats are very real.

The problem begins when the villain decides that suspicion is enough to justify punishment.

A person doesn’t need to have committed a crime. They only need to fit the Inquisitor’s definition of a potential threat.

That distinction gives the party something meaningful to investigate. Are the people being hunted actually dangerous? Is the Inquisitor responding to a genuine threat, or using isolated incidents to justify a much broader campaign? Could there be a way to protect the community without persecuting innocent people?

Make the Inquisitor a Threat Before the Party Meets Them

One of the best ways to introduce this villain is through their reputation.

The characters might arrive in a settlement where people refuse to discuss magic in public. A shopkeeper hides a collection of spell components when the party enters. A local priest warns them not to ask questions about recent disappearances. A wizard who once helped the party has fled the region, leaving behind a hastily packed home.

The Inquisitor’s agents might already be present, asking questions about strangers and recording the names of anyone with unusual abilities.

You can build tension without immediately introducing the villain. Let the party encounter the consequences of their work first.

Perhaps an old adventuring companion has been arrested. Maybe a friendly NPC asks the characters to hide a family member who has been accused of forbidden magic. Or the party discovers that a town’s entire magical community has disappeared overnight.

When the Inquisitor finally appears, make them calm, confident, and perfectly comfortable in their authority.

They might welcome the adventurers, praise their previous heroic deeds, and then casually ask a few questions about the magic they’ve used. They could offer the party an opportunity to cooperate with the investigation, perhaps even inviting them to help identify dangerous individuals.

The villain doesn’t need to threaten the characters immediately. In fact, a polite Inquisitor who sincerely believes they’re doing the right thing can be far more unsettling than one who constantly delivers threats.

Give the Inquisitor Resources and Authority

An Inquisitor shouldn’t operate alone. Their power comes from the organization behind them, the people who support their mission, and the authority they can bring to bear.

They might command a group of specialized investigators trained to identify magical disguises, detect supernatural influence, and recognize signs of forbidden rituals. Their organization could maintain records of suspected cultists, dangerous spellcasters, and individuals who have encountered supernatural threats.

Some agents might be ordinary soldiers or guards. Others could be clerics, paladins, wizards, or rogues with specialized abilities. A particularly dangerous Inquisitor might employ creatures that can detect lies, track magical signatures, or identify hidden forms.

The organization could also have access to resources that make direct confrontation difficult. They might control prisons, interrogation chambers, magical archives, confiscated artifacts, and networks of informants.

Not every member of the organization needs to be evil. Some may genuinely want to protect people. Others might believe that the Inquisitor’s methods are excessive but fear what would happen if the organization lost control.

This creates opportunities for the party to find allies within the enemy’s ranks. A junior investigator might provide information about an upcoming arrest. A prison guard could help someone escape. A senior member might be willing to testify against the Inquisitor if the party can provide evidence of wrongdoing.

The villain’s organization becomes a living part of the campaign rather than a collection of enemies waiting to be defeated.

The Inquisitor’s Playbook: From Investigation to Persecution

A memorable Inquisitor doesn’t begin by arresting everyone in sight. Their campaign against supposed threats should escalate as they gain influence and become increasingly convinced that their methods are necessary.

Identify the Threat. The Inquisitor begins by investigating unusual events. They collect reports of strange magic, missing people, supernatural attacks, and suspicious gatherings. Their agents question witnesses and gather information. At this stage, the party might encounter investigators who appear to be doing perfectly reasonable work.

Establish the Doctrine. The Inquisitor defines what constitutes a threat. Perhaps certain spells are outlawed, particular religious practices are forbidden, or anyone associated with a specific creature type is considered dangerous. The rules might initially seem reasonable, but their definitions become increasingly broad.

Expand the Investigation. More agents arrive. Informants are recruited, homes are searched, and people are questioned. The Inquisitor begins connecting unrelated incidents into a larger conspiracy. Individuals who disagree with the investigation are treated as potential accomplices.

Make an Example. A public arrest, execution, or forced confession sends a message to the community. The Inquisitor wants people to understand the consequences of disobedience. Some citizens become supporters, while others retreat into silence.

Eliminate Opposition. Anyone who challenges the Inquisitor becomes a target. Witnesses disappear, officials are replaced, and the organization’s authority expands. Even members of the Inquisitor’s own organization may be punished for questioning orders.

Pursue Purity at Any Cost. The Inquisitor no longer distinguishes between actual threats and possible threats. Their mission has become more important than the people it was originally intended to protect.

This progression gives the DM plenty of opportunities to introduce the villain gradually. The party might first encounter an investigation, then a wrongful arrest, and eventually a campaign of persecution that affects entire communities.

The characters’ decisions can influence how quickly the situation escalates. They might expose a false accusation before the Inquisitor gains support, or their interference could convince the villain that an even more aggressive response is necessary.

Make the Inquisitor More Than an Interrogator

The Inquisitor doesn’t have to be a cleric or paladin, although either class can provide an excellent foundation. A wizard specializing in divination and abjuration could make a terrifying investigator. A rogue might be an expert at uncovering secrets and identifying hidden enemies. A fighter could lead a disciplined organization of soldiers and monster hunters.

Consider what makes the Inquisitor particularly effective at their job.

Perhaps they have a gift for reading people and identifying inconsistencies in testimony. Maybe they are an accomplished investigator who knows how to uncover secrets that others overlook. They could be a powerful spellcaster who uses magic to locate hidden creatures, identify enchantments, or prevent prisoners from escaping.

Their abilities should support their role in the campaign. An Inquisitor who can detect magical disguises creates different challenges from one who commands a network of spies or uses divine magic to interrogate suspects.

You can also give them a personal history that explains their dedication. Perhaps they lost their family to a cult. Maybe they were once a member of a magical order that concealed a terrible disaster. They could have been the only survivor of a settlement destroyed by an undead army.

These experiences don’t excuse their actions, but they help explain why the villain became so convinced that their mission matters more than individual lives.

Running the Inquisitor Beyond Combat

The Inquisitor is an excellent villain for investigation, social encounters, stealth missions, and adventures where the party must operate carefully.

The characters might need to break someone out of a heavily guarded prison, recover evidence from an inquisitorial archive, or protect a witness who knows the truth about a recent execution. They could infiltrate a public hearing, expose a false confession, or convince a local official to challenge the Inquisitor’s authority.

Another adventure might involve helping a family escape a settlement before the Inquisitor’s agents arrive. The party could be tasked with transporting a forbidden magical artifact, not because they want to use it, but because the Inquisitor intends to destroy it along with everyone connected to its discovery.

You can also create situations where the party must investigate the same threat as the Inquisitor. Perhaps a real cult is operating in the region, and the villain’s agents have uncovered part of its plan. The characters might need to work alongside the organization temporarily, even while knowing that innocent people are being harmed by its methods.

Combat should still have a place. The party could face inquisitorial hunters, magical investigators, armored enforcers, or specialized teams trained to capture spellcasters. These enemies might use restraints, silence effects, counterspells, and tactics designed to prevent characters from escaping.

Give these encounters objectives beyond defeating the opposition. The party might need to rescue prisoners, destroy a magical tracking device, prevent a public execution, or escape with evidence before reinforcements arrive.

The Inquisitor’s greatest advantage is that they can make the party’s lives difficult without ever appearing on the battlefield.

The Inquisitor’s Greatest Weakness

The Inquisitor’s greatest weakness is their certainty.

They believe they know what is right, who is dangerous, and what must be done. That certainty can make them extremely effective, but it also makes them vulnerable to information that contradicts their beliefs.

Perhaps the villain has built their entire career around hunting a particular type of supernatural creature. When the party discovers that one of those creatures has been protecting a village, the Inquisitor refuses to accept the evidence.

Maybe they believe all warlocks serve evil patrons, only to discover that a particular pact has been preventing a greater threat from entering the world. They might insist that every member of a suspected cult is guilty, even when the party proves that some were innocent victims.

The Inquisitor cannot easily accept exceptions because doing so would threaten the foundation of their doctrine.

Another weakness might be their dependence on authority. They are accustomed to having the law, the church, or a powerful organization behind them. If the party exposes their actions to the people who grant that authority, the villain may find their position suddenly less secure.

Perhaps the Inquisitor’s superiors never approved the executions. Maybe the king has no idea how far the investigation has gone. The party might discover that the villain has been falsifying reports to justify increasingly extreme measures.

The challenge is making these weaknesses actionable. Give the players evidence they can uncover, people they can protect, and opportunities to turn the Inquisitor’s own organization against them.

The villain should be dangerous, but they shouldn’t be untouchable.

When the Inquisitor Goes Too Far

At some point, the Inquisitor needs to cross a line that makes their continued authority impossible to ignore.

Perhaps they order the execution of an entire family because one member has been accused of practicing forbidden magic. Maybe they imprison a respected community leader and force a confession through magical coercion. They could declare an entire ancestry, faith, or group of spellcasters inherently dangerous and demand that they be removed from the region.

You might even have the Inquisitor use the very magic they condemn. Perhaps they employ forbidden divination, summon an extraplanar creature to identify suspects, or make a pact with a being that promises to reveal hidden enemies.

The villain insists that these measures are necessary. They might argue that a small number of innocent people suffering is preferable to an entire kingdom being destroyed.

This is a particularly effective moment to connect the Inquisitor to the party’s earlier adventures. An NPC the characters rescued could be arrested. A former ally might be forced to testify against them. Someone who once helped the party could become a target because of their association with adventurers who use dangerous magic.

The Inquisitor might even accuse the party directly.

Their reputation, previous use of forbidden magic, or relationships with unusual creatures could provide enough evidence to justify an investigation. The characters might find themselves wanted criminals, forced to gather allies and evidence while avoiding the very organization they once thought was protecting the kingdom.

The villain has turned the heroes into the next case file.

The Final Confrontation: Who Watches the Inquisitor?

The final confrontation with an Inquisitor doesn’t have to be a straightforward battle in an interrogation chamber. It could take place during a public trial, a mass arrest, or an attempt to execute a group of innocent prisoners.

Perhaps the party discovers that the Inquisitor plans to use a powerful artifact to identify every person in the city who has ever practiced forbidden magic. The device could expose genuine threats, but it will also reveal innocent people who have never harmed anyone.

The characters must decide whether to destroy the artifact, expose the Inquisitor’s plan, or find a way to use the device without allowing the villain to control its results.

Another possibility is that the Inquisitor has retreated to a fortified headquarters, surrounded by loyal agents and prisoners. The party must infiltrate the facility, rescue captives, and gather evidence before the villain can destroy it.

The Inquisitor might be a formidable opponent in combat, using divine magic, protective spells, and abilities designed to counter the party’s strengths. Their guards could include clerics, paladins, mages, and specialized hunters who have studied the characters’ previous encounters.

But defeating the Inquisitor should be only one possible path to victory.

The party might expose the villain’s crimes and convince their superiors to revoke their authority. They could turn members of the organization against the Inquisitor, rescue enough prisoners to reveal the truth, or persuade the community to refuse cooperation.

If the villain is defeated, what happens to the organization? Does it disband? Does someone more reasonable take control? Or has the Inquisitor’s work created so much fear that the people are willing to accept another leader who promises to continue the same mission?

The characters might discover that removing one person doesn’t necessarily remove the beliefs and institutions that allowed them to gain power.

That can provide an excellent conclusion to an adventure while leaving room for future stories.

A Twist: What If the Inquisitor Is Hunting a Real Threat?

For a particularly interesting twist, make the Inquisitor correct about the danger they’re investigating.

A cult really is preparing to summon an ancient evil. A group of spellcasters really has been experimenting with magic that could destroy the region. A supernatural infection really is spreading through the population.

The Inquisitor has uncovered part of the truth.

The problem is that their investigation has become so broad and aggressive that they’re arresting innocent people, destroying evidence, and driving potential allies into hiding.

Perhaps the party discovers that one of the people the Inquisitor imprisoned is the only person who knows how to stop the threat. Maybe the villain’s methods have caused the actual cultists to go underground, making them harder to find. The Inquisitor might even be protecting the real villains by focusing all their attention on innocent suspects.

Now the party has to decide whether to work with someone whose methods they oppose.

This can create a tense temporary alliance. The Inquisitor may agree to help stop the greater threat, but only if the characters accept their authority and follow their orders. The party might need to convince the villain to trust them, or find a way to accomplish the mission without giving the Inquisitor even more power.

The twist works because it doesn’t erase the villain’s wrongdoing. It simply makes the situation more complicated.

The Inquisitor may have identified a real danger, but that doesn’t mean they have the right to decide who deserves to suffer.

Creating Memorable D&D Stories With the Inquisitor

The Inquisitor is a fantastic villain for campaigns involving religious institutions, magical organizations, royal authority, forbidden knowledge, or supernatural threats. They can begin as a respected investigator working to protect a community and gradually become someone whose pursuit of safety creates more danger than the threats they were meant to stop.

Give them a doctrine they genuinely believe in, an organization capable of enforcing their decisions, and a reason they refuse to question their methods. Make some of their concerns legitimate, and let the party discover the difference between protecting people and controlling them.

Most importantly, make sure the players have opportunities to challenge the Inquisitor beyond combat. They can investigate accusations, protect innocent people, expose corruption, turn allies, and decide what should happen to the organization after its leader is gone.

The Inquisitor should make the players think about the cost of safety, the danger of unchecked authority, and the difference between justice and obedience.

Because the most dangerous Inquisitor isn’t the one who hunts monsters.

It’s the one who has decided that anyone who disagrees with them must be a monster.

Continue the Villain Playbook Series

We’ve explored a growing collection of villains throughout this series, from the False Hero and Fey Manipulator to the Master Thief, Usurper, and Revolutionary. Each archetype gives Dungeon Masters a different way to challenge their players, whether through political intrigue, personal ambition, supernatural threats, or moral dilemmas.

The Inquisitor adds another kind of conflict: a villain who uses authority and the promise of protection to justify persecution. Their greatest weapon isn’t necessarily a sword or a spell. It’s the belief that they’re always right.

But what happens when a villain doesn’t want to eliminate threats or control a kingdom? What if they simply want to possess the rarest, most unusual, and most powerful things the world has to offer?

In our next Villain Playbook installment, we’ll explore The Collector. This villain might collect magical artifacts, legendary creatures, rare souls, or even people. And if the party happens to be something the Collector has never encountered before, they might discover that the villain has a very personal interest in adding them to the collection.

Thanks for reading. Until Next Time, Stay Nerdy!!