An space-faring empire first established by an scholar known as Covu the Transcended that managed to cross the Threshold and came to the conclusion that death was the natural state of all things and life was an anathema. They move from planet to planet, converting their population into their ranks or killing those that resist just before destroying their worlds completely.
- The Empire: Take The Theocracy + Religion of Evil and spread their faith at sword point and you get this trope.
- Omnicidal Maniac: They believe that life is against nature itself and that they must extinguish it in order.
- Religion of Evil: Necroism preaches that life is against nature itself.
- The Necrocracy: All Necromongers are heavily implied to be undead since the conversion process they undertake deprives them of natural color and they do not propagate naturally, since that would create more life. The Lord Marshall who rules over them is most certainly undead, since he is referred to as an Holy Half-Dead by his followers.
- You Kill It, You Bought It: "You keep what you kill" is one of the Necromongers' tenets, believing that ending another's life entitles you to their property and position.
Lord Marshal Zhylaw
The leader of the Necromongers. Before Riddick's birth, Zhylaw consulted an Elemental seer, who told him that a Furyan male would be born that would kill him in the future. In retaliation, Zhylaw attacked Furya in an attempt to massacre all male children, going so far as to personally strangle newborn infants with their own umbilical cords. One of the newborn baby boys he did this to happened to be named Richard B. Riddick. Zhylaw left him in a dumpster, not quite dead, which comes back to bite him in the ass later. At some point, he traveled to the Underverse and afterwards returned not completely human.
- All There in the Manual: His name and full history is included on DVD extras.
- And Show It to You: He can do this with a person's soul.
- And Your Little Dog, Too!: He converted Kyra just so that he can break Riddick. It backfired horribly.
- Big Bad: He's the main antagonist of The Chronicles of Riddick.
- Blood Knight: He doesn't shy away from a fight, gets excited to meet an enemy who can wound him and praises battle as a glorious thing.
- Came Back Wrong: From the Underverse, supposedly.
- Bond Villain Stupidity: He used his Flash Step ability to escape Vaako's halberd, but he just had to lunge for that one weapon lying on the floor, where Riddick waited for him to materialize so he can deliver a killing blow. It was especially egregious since he was shown lunging on top of a tall statue far away from the floor to get that very weapon, and he could have just grabbed another one as there were multiple such weapons in the room, in positions neither Vaako nor Riddick could have reached.
- Character Death: He is killed by Riddick at the end of the movie, for added irony with a knife that Zhylaw handed to him.
- Dark Messiah: There have been Lord Marshals before Zhylaw and they've all been considered holy to some degree, but Zhylaw is considered 'the last' who will lead their religion to their version of paradise.
- Dirty Old Man: Has a harem of well-endowed concubines.
- Evil Is Hammy: Colm Feore is having the time of his life.
- Evil Overlord: Of the Necromonger Empire.
- Flash Step: He can project himself around, using that as Super Speed to deliver surprise attacks and o erwhelm his enemies by raining blows on them faster than they can parry or avoid.
- The Fundamentalist: But not for any normal religion... For a death-worshiping cult no less.
- Galactic Conqueror: He goes from planet to planet, conquering the citizens and forcefully converting them.
- Genocide Backfire: Subverted, while Zhylaw did exterminate his people, Riddick feels ambivalent towards them and rather wants the Lord Marshall dead for personal issues.
- Kneel Before Zod: His preferred recruitment method is to invade a world and cow its people into obedience.Zhylaw: Join him... or join me!
- Lightning Bruiser: Thanks to his supernatural powers, he's not only insanely strong but able to move at superhuman speeds by "soul teleporting" around. In their ultimate fight, Riddick does manage to land a few good hits on him, but ultimately even Riddick is outmatched and it takes Kyra stabbing him in the back while he's distracted to weaken him enough for Riddick to kill him.
- Nice Job Breaking It, Herod!: He thought he had guaranteed his survival by killing every single last Furyan, but he didn't count there would have been one survivor: Riddick.
- Religious Bruiser: He's a bloodthirsty, warlike leader of a cult.
- Super Speed: He's able to dash around using his astral projection.
- Super Strength: Even without help from his Super Speed, he is able to punch people across the room and break metal with his blows.
- Tin Tyrant: He's always clad in heavy body armour.
- Villain Respect: He expresses that for Riddick who has just killed one of his best soldiers in a few quick blows.Zhylaw: (trying to wrest a knife from Riddick's grip) Are you familiar to me? Have we met on some distant field?Riddick: (wins the arm-wrestle) You'd think I'd remember.Zhylaw: (approvingly) You'd think I would too.
- Wicked Cultured: He's a ruthless Galactic Conqueror who waxes poetic about "artful" ways of destroying a star system.
- Would Hurt a Child: Oh, hell yes. He strangled infants with their own umbilical chords.
- Your Soul Is Mine: One of his more potent abilities is to rip a person's soul directly out of them.
Lord Siberius Vaako
A Necromonger Commander, serving as Zhylaw's right hand man. Though sent to kill Riddick, confused of his leader's sudden fear, Vaako uses it as an excuse to get close enough to assassinate Zhylaw to become Lord Marshall.
- The Dragon: To the Lord Marshal.
- Dragon with an Agenda: Thanks to the influence of his wife.
- Honor Before Reason: Plots to assault Zhylaw when he shows weakness, even if he's no match for the Lord Marshal.
- Knight Templar: If he comes to see his leader as not befitting the Necromonger ideals, he'll turn on him. Although if the leader is willing to listen, he'll first ask nicely.
- Noble Demon: Vaako is vicious, but would recognize a fellow warrior as worthy. He would also be loyal to his liege as long as he's fit to lead. He also intended to honor his deal with Riddick and leave him alone in return for the crown.
- Older Than They Look: Looks Riddick's age or even younger, but he was ten years old during the Furya massacre when Riddick was a baby.
- Religious Bruiser: He's a true believer in the Necromonger religion, and the only reason Dame Vaako is able to convince him to become The Starscream is by pointing out that the Lord Marshal endangers the entire empire and is not as devout as he ought to be.
- The Starscream: But only after his wife convinces him that the Lord Marshal has broken the conventions of the Necromonger religion.
Wife of the Necromonger Empire commander Lord Vaako. Dame Vaako is consumed by, even defined by, overweening ambition. She is not a comfortable wife, constantly pushing Vaako to higher office, even hinting at murder to advance his career.
- Ambition Is Evil: Dame Vaako is deeply ambitious, yearning for her and her husband to ascend the ranks of the Necromonger Empire. She's willing to risk everything she has for more.
- Big NO: When Riddick kills the Lord Marshal, robbing Vaako of his chance.
- The Dark Chick: She isn't a fighter, but she is firmly on the bad guys' side and is more dangerous by acting like a Manipulative Bitch.
- Faux Affably Evil: pretends to give Riddick a tour inside Necropolis, only to lure him into a trap.
- Ms. Fanservice: Due to her form-fitting outfits.
- Lady Macbeth: To her husband Vaako; she constantly whispers in his ear about overthrowing the Lord Marshal.
- Unholy Matrimony: She and Vaako are undoubtedly evil, but are in love.
- The Vamp: Uses her charms to lure Riddick into the Necromonger stronghold for interrogation.Dame Vaako: Perhaps the breeder would do it if somebody just asked him.
- Death Equals Redemption: His final speech to Riddick, combined with calmly walking into the deadly sunlight, convinces Riddick to go after the Lord Marshal. He is smiling as he dies."The Necromonger in me warns you not to go back... but the Furyan in me... hopes you won't listen."
- Driven to Suicide: The guilt and inner turmoil of giving up all he is to serve the Necromongers gets to him, and he walks out into the Crematoria weather to burn alive.
- Passive Rescue: When Riddick is pinned to the ground by the Quasi-Deads and the Lord Marshal orders his execution, the Purifier pulls the plug on the Quasi-Deads to give Riddick a fighting chance, possibly because he learns of their common heritage. He later gives him a chance to go save Kyra on Helion Prime.
- There Is Another: The revelation that Riddick is a Furyan seems to shake him enough to abandon his faith, of which he was initially a staunch supporter.
A commander in Necromonger Empire.
- Evil Scars: Half of his face is covered in a web of scratches. Lampshaded by Riddick:Riddick: That guy with the fucked-up face, Krone.
- Guns Akimbo: He shoots the rock on which Riddick is standing with two gravity pistols.
- I Did What I Had to Do: How he justifies his betrayal.
- K Names: Krone.
The Lord Marshall's Consorts
An harem of Necromonger concubines belonging to the current Lord Marshal.
- Assassin Outclassin': In the third movie's director cut, one of them actually tries to stab Riddick in the back while he is distracted. However, she misses up his heart by stabbing him below which he chides her for it.
- Come Back to Bed, Honey: They beckon Riddick to do this and enjoy their company, but since he knows what they are really for, he refuses.
- Fanservice Extra: They have no names, but they are very pretty to look at and appear naked in the third movie.
- Lady in Red: The one consort that tries to assassinate Riddick after trying to seduce him in the third movie wears an red nightgown, highlighting her danger.
- Royal Harem: For the Lord Marshall, originally belonging to Zhylaw they end up being inherited by Riddick.