During the gap between the sixth and seventh iterations of the cosmos, the elder god of darkness Knull ruled supreme over the void, until he was awoken by the light of creation. Enraged, he waged war agaist the light, decapitating a Celestial after creating a blade of Living Abyss. Refining the blade using the Celestial's severed head as a forge, unwittingly creating a metaphysical connection between himself and the Celestial, Knull proceeded to annihilate entire pantheons of gods. One of his fights against the Light left Knull so injured that an inhabitant of a nameless planet was able to steal his blade, unwillingly following his footsteps. After recovering, Knull discovered he could merge his creations to "lesser creatures", and decided to use this as a way to corrupt the light. At some point during his crusade, Knull came across a time-displaced Silver Surfer, starting a rivalry that would resurface eons later. Knull's reign of terror came to an end when the Norse god of thunder Thor struck down two of his dragons - the Grendel and Grendel's Mother - and severed his connection to Symbiote Hive. Bonding to the nearest hosts they could find, the Hive was infected with concepts of nobility and honor, causing the symbiotes to rebel against Knull and imprison him at the core of their homeworld, rebranding themselves the Klyntar - their word for "cage" - and seeking to redeem themselves as the Agents of the Cosmos. On Earth, an apocalyptic cult worshiping Knull was established by humans who had worshiped the symbiote dragons and been infected by offshoots still loyal to Knull, spreading around the world and infiltrating various other organizations to prepare for and facilitate Knull's return.
In the 1930s, a teenage Namor McKenzie was sent as a diplomatic envoy to the Chasm People's outpost in the Orreki Reefs in a bid to arrange a union between them and the Atlantean Empire. After helping foil a coup against King Attukar of the Chasm People, Namor, Dorma, and the Chasm People's prince Attuma were sent to accompany the Swift Tide - an elite squad of warrior women - on a mission to retrieve an ancient eldritch artifact called the Unforgotten Stone. The mission ended in disaster, with the Swift Tide being corrupted into monsters by the Unforgotten Stone's dark power, redubbing themselves the Black Tide. The Black Tide slaughtered the Chasm People present at the Orreki Reefs, including King Attukar, before declaring war on Atlantis itself. When the Black Tide attacked Atlantis, Dorma used the power of the Unforgotten Stone - which had been retrieved by her pet mutant goldfish Ambrose - to trap them in ice. Read the rites of banishment by Emperor Thakorr, the Black Tide were imprisoned in the depths of the Harran's Rift, but Attuma blamed Atlantis for the disaster, ruining the chance for peace between his people and Namor's.
In the 1960s, the Grendel - frozen in a glacier for centuries - was uncovered by S.H.I.E.L.D. and used as part of a black ops super-soldier program during the Vietnam War. Due to the symbiotes' connection to Knull through the Hive-Mind, they went berserk and rampaged through Vietnam until S.H.I.E.L.D. director Nick Fury sent Logan and a Life-Model Decoy of himself to put a stop to them, encountering Rex Strickland - one of the Sym-Soldiers. To eliminate witnesses and evidence, Fury self-destructed the Life-Model Decoy, incapacitating the symbiotes and killing Strickland, but Strickland's symbiote survived, broke free of Knull's control, and imprinted his codex into itself to pose as him, becoming an Agent of S.H.I.E.L.D. Following this, the Weapon Plus supersoldier initiative appropriated the Sym-Soldier Program to create Weapon V.
During the time Spider-Man was the host of the symbiote later known as Venom, a proto-symbiote called Mister E attempted to conquer the Earth in service of his master, who had reached back through time from the future to resurrect it in a bid to change the past. Witnessing a future where Mister E succeeded, Kang the Conquerer attempted to prevent this from coming to pass, extracting Uatu the Watcher's knowledge and recruiting Rocket Raccoon to his cause. Coming into conflict with Spider-Man, Mister E was confused as to why one of its brethren would be subservient to its host and try to stop its plan. When Black Knight intervened, Mister E impersonated Merlin to lure him into a trap and stole the Ebony Blade - intent on destroying it out of the belief it could be used to vanquish Knull. Stealing an experimental Quinjet, Mister E took the Ebony Blade to the troll blacksmith Ulicia on Knowhere; pursued by Kang, Rocket, Spider-Man, the Black Knight, and Captain Marvel. After a brief fight with Ulicia's brother Ulik, who had been recruited by Uatu to reclaim the Ebony Blade, Mister E was subdued by Captain Marvel's light-based powers and imprisoned in the Collector's showroom. Reaching backwards through time, Knull restored Mister E's full power and he escaped, reclaiming the Ebony Blade with the intent of using it to prematurely free Knull, but was vanquished by Captain Marvel. Uatu attempted to take the group of heroes and villains forward through time to stop Knull's invasion in the future, but was stopped by the other Watchers. Captain Marvel was able to destroy the shell of living abyss covering the sun, briefly rousing Knull from his slumber to vow revenge. In order to preserve the continuity of the time-stream, Uatu erased the memories of everyone involved.
Following the downfall of S.H.I.E.L.D., "Strickland" recruited Eddie Brock - host of the Venom symbiote - to rescue the other Sym-Soldiers. Venom unwittingly freed the Grendel, which was remote-piloted by Knull and embarked on a rampage to reclaim its missing pieces. Following a close encounter with Knull's avatar, Eddie bonded to Strickland's symbiote and attempted to stop Knull, who nearly succeeded in assimilating the Venom symbiote into the Grendel; Strickland's symbiote sacrificing itself to drag Knull's avatar into a blast furnace and immolate it. Seeking to make amends with his estranged father, Eddie discovered he had a son named Dylan and took him from his abusive grandfather.
The corpse of the serial killer Cletus Kasady was recovered by the cult worshiping Knull, who bonded it to a surviving sample of the Grendel. Knull attempted to take over Cletus' body, but was stopped by Cletus ripping out Tanis Nieves' spine and eating it to absorb her codex, which contained remnants of the Carnage symbiote. Now connected to Knull as an undead demigod, Cletus decided to awake the dark elder god by assimilating as many symbiote codices as possible to amplify his symbiote's connection to the rest of the Hive. Assimilating the Mania symbiote and many other hosts' codices, Carnage rampaged through New York, ultimately tricking Eddie into helping him unleash Knull at the cost of his life. In the process, Dylan learned he was a human/symbiote hybrid with powers similar to Knull's.
Destroying Klyntar, Knull was confronted by the Exolon-infected Kree bounty-hunter, Zak-Del, who tried fighting him only to be stripped of his Exolon symbiote. Recreating All-Black, Knull and his horde blaze a swath of destruction across the cosmos en route to Earth - destroying multiple planets; waylaying a fleet of Kree/Skrull Alliance ships and slaughtering or infecting their crews, and settling his eons-old grudge against the Celestials by killing and/or infecting them with symbiotes. After his failed duel with Knull, Zak-Del was immediately confronted by the God of Light, Knull's opposite, telling him to find Eddie Brock and inform him of its existence. Focusing his attention on Earth, Knull dispatched symbiote-dragons across the cosmos to cause as much widespread destruction as possible, one of them attacking Spartax and slaughtering two billion of its inhabitants in the space of four standard hours before being slain by the apotheosized Star-Lord. Other symbiote-dragons began laying waste to Zn'rx territories, precipitating a Snarkwar amongst the various factions. Knull also infected Fin Fang Foom with a symbiote, adding the Makluan dragon to his army and sending him to attack Asgard.
Conquest of Earth
Sensing that Knull's arrival on Earth is imminent, Eddie alerts the Avengers and takes Dylan to the secret bunker made for Spider-Man by Ezekiel Sims. As hundreds of thousands of Symbiote Dragons fly through space towards Earth, Iron Man uses derelict warships left over from the war with the Cotati as a minefield - only managing to kill a hundred of them. The Avengers contact Mayor Wilson Fisk to warn him of the danger, but Fisk disregards the warning to evacuate the city, assuming that it's a trick to discredit him. As the Avengers and Fantastic Four rush to evacuate Manhattan, the symbiote dragons make landfall and start cocooning the city in symbiotes. As Doctor Strange, the X-Men, and numerous street-level heroes join the evacuation effort, Eddie makes his way to Carnage's Spire and connects to it using the Venom symbiote - intending to hack into the Symbiote Hive-Mind and hijack control of the symbiote dragons. Before Eddie can attempt to do so, symbiote-controlled Celestials arrive and Knull emerges demanding to be given the human called Brock in exchange for making Earth's destruction swift and painless.
The Sentry arrives and attempts to rip Knull in half, but is effortlessly overpowered and torn in half himself. Absorbing the Void, Knull forcibly bonds symbiotes to most of the remaining heroes and then envelops the Earth in a shell of living abyss. Venom decides to surrender to Knull in order to buy the remaining heroes time to escape, alerting Knull to his location. Knull grabs Venom and takes him to the top of the Empire State Building, where Venom offers to serve him if he spares Earth. Knull refuses and informs Venom that the Brock he wanted was Dylan, ripping the Venom symbiote off Eddie before dropping him off the skyscraper's roof. Eddie is mortally wounded and left comatose, Spider-Man taking him to the Fantastic Four for medical treatment. Sacrificing himself to buy time for Spider-Man to escape with Eddie, the Human Torch is taken over by a symbiote, as are his soulmate Sky and the Thing.
Disregarding the evacuation order to attempt a major heist, Black Cat is caught off-guard by Knull's attack and barely manages to escape, horrified by witnessing the Avengers' last stand. Making her way to Alchemax, she recruits Doctor Steven to provide her with the means to save Doctor Strange.
As the symbiote shell encases the Earth, Knull's symbiote-dragons attack major cities around the world, attempting to devour everyone they come across or spawning symbiotes that take over civilians, heroes, and villains alike. Knull sends a symbiote-dragon to hunt down the Black Knight, seeking to claim the Ebony Blade for himself; leading to a showdown in Shanghai between the Black Knight, Aero, Sword Master, and one of Knull's avatars in the shape of the dark god Chiyou. Coming to terms with his inner darkness, the Black Knight stops Knull from claiming the Ebony Blade and Sword Master's Sword of Fu Xi, the three heroes disembarking to Manhattan to take the fight to Knull. Ghost Rider - in the middle of interrogating Mephisto - witnesses the beginning of Knull's invasion and uses his Penance Stare to sever a symbiote-dragon's connection to the Symbiote Hive-Mind. Faced with an army of demons seeking to kill him and restore Mephisto to the throne of Hell, Blaze is joined by Death Rider, Sara the Caretaker, and Blackheart. Mephisto takes advantage of the distraction to escape, but the demons are taken over by symbiotes and capture him. Ghost Rider and his allies battle the symbiote-infected demons, which attempt to infect Ghost Rider as well. Ghost Rider incapacitates the symbiote-controlled demons with another Penance Stare, and Sara persuades him to set Mephisto free to reclaim the throne of his Hell. As a parting gift, Mephisto captures a symbiote-dragon and takes it to Hell promising to destroy it, but immediately reneges on his word intending to weaponize it for his own purposes.
Another symbiote-dragon attacks the Ravencroft Institute and breaches the tomb of Cortland Kasady, an ancestor of Cletus Kasady and member of the symbiote-worshiping cult who Knull viewed as one of his most-loyal acolytes. Knull reanimates Cortland as he once had his descendant, dubbing the undead serial killer Plague; and Plague sets out to wreak havoc in Knull's name and avenge his descendant by killing Eddie Brock.
In the hours that follow Knull's initial victory, the X-Men withdraw from the global defense effort to focus on defending Krakoa, while the remaining Fantastic Four, Iron Man, and the Black Panther attempt to rally as many allies as they can - including arranging a truce with Namor and sending him to recruit the Black Tide, sending Blade to recruit Count Dracula, and contacting the Mayor Fisk to recruit New York's supervillains. Taking the loss of several of his bodyguards, constituents, and reputation personally, Fisk forcibly recruits a team of supervillains from the Bar with No Name, dubs them the Thunderbolts, and sends them to find Norman Osborn. Gwen Stacy's apartment is attacked by a symbiote-dragon, and when she attempts to flee to Earth-65 she accidentally warps her universe's Mary Jane Watson -- who had been bonded to a sample of Gwen's artificial Venom symbiote -- to Earth-616. MJ is taken over by a symbiote and dubbed Carnage by Knull, who orders her to capture Gwen. Connected to the Hive-Mind, Gwen is confronted by Knull, who mocks her for having unwittingly pushed MJ to embrace his corruption and accepts her challenge to save her friend. Chasing the Carnageized MJ down, Gwen manages to sever the connection between her symbiote and Knull's living abyss, seemingly killing MJ's symbiote.
Wakanda is nearly overrun by symbiotes, but the Black Panther repells the attack by using Wakanda's forcefield to amplify one of Klaw's sonic arm-cannons -- briefly punching a hole through the symbiote barrier encasing the Earth -- and summoning the Hand of Bast to combat a symbiote-dragon spawning the horde. The "Knullified" Thing and the Human Torch attack 4 Yancy Street as Sky leads a horde of symbiote-dragons to attack Brainstorm and Powerhouse. Mister Fantastic and the Invisible Woman manage to repel the Thing and Human Torch, while Dragon Man battles Sky; and Brainstorm is briefly taken over by a symbiote only to be freed using a lightning gun made by Bentley-23. Iron Man captures a symbiote-dragon using Extremis and merges it with his armor, but is unable to fully sever its connection to the Hive Mind. When Tony attempts to bond it to Eddie, the symbiote attacks him, forcing Dylan to reveal his powers to subdue it. As Mister Fantastic jubilantly lauds Dylan as their ace-in-the-hole, everyone notices that Eddie has succumbed to his injuries and died. His consciousness trapped in the Symbiote Hive-Mind as a codex, Eddie is reunited with Tyrannosaurus (Rex Strickland) and Agent Anti-Venom (Flash Thompson), recruiting them to help retake the Venom symbiote from Knull and destroy the Hive from the inside.
Using an unstable mixture of Astrobiological Serum and Weapon V's Sym-Soldier Suits, Black Cat is able to rescue Doctor Strange with the help of Bats, incurring the wrath of a horde of symbiote dragons. To fend them off, Black Cat uses a piece of the staff that Dr. Strange had crafted from the wood of Yggdrasill to augment herself with the divine power of Asgard.
While escorting the Sentry's soul to Valhalla, the Valkyrie Jane Foster encounters an undead Celestial bound to Knull by All-Black. The undead Celestial consumes the Sentry's soul, and in trying to rescue him Jane frees one of the original nine Valkyries, who had been trapped inside the Celestial for millions of years. Learning from Brunnhilde that the undead Celestial supplies Knull with a vast amount of power, making him nigh-invincible, Jane and the Valkyrie plan to sever the dark god's connection to the Celestial and free the souls trapped within it; Jane departing to recruit former Valkyries Hildegarde and Dani Moonstar.
Despite some symbiote-related setbacks, Fisk's Thunderbolts find Osborn in the Ravencroft Institute, and he proposes recruiting the Sentry to fight Knull -- not knowing the Sentry has already been killed. Star is able to track the Sentry's energy signature and leads the Thunderbolts to his corpse, which Taskmaster proposes turning into a cosmic energy nuke to use against Knull. However, the Thunderbolts instead trick Fisk into thinking they've sacrificed themselves doing so before blackmailing him into providing them with additional jobs once Knull is inevitably defeated. Iron Man blames himself for Eddie Brock's death, but is snapped out of his funk by Doctor Doom, who attempts to persuade him to share his symbiote-augmented armor under the pretense of using it to defeat Knull. Andi Benton is drawn into the fight when she encounters the "Knullified" Agony, Phage, Riot, and Lasher symbiotes hunting for Dylan Brock, and is almost devoured when they merge into Hybrid and try to assimilate the Scream symbiote. American Kaiju is dispatched to fight a horde of symbiote dragons, devouring several before they amalgamate into a massive two-headed dragon - which he subdues after an intense battle. Descending into the depths of Harran's Rift, Namor meets with the Black Tide and brokers a temporary truce, bringing Kharsa and Sycorax to help fight Knull's forces.
The Quiet Council of Krakoa dispatch the Red Queen and her Marauders to rescue Cyclops and Storm, though they are side-tracked rescuing a ship belonging to human traffickers, marooning the slavers and giving the refugees sanctuary on Island M. As Knull's forces attack Krakoa, S.W.O.R.D. director Abigail Brand dispatches re-enforcements to Krakoa while surreptitiously sending Mentallo to take the Five off-planet, but they are all defeated by the symbiote-possessed Cable. Brand dispatches Manifold to try recruiting extraterrestrial aid, and though he is unsuccessful he discovers that Alpha Flight's acting commander Henry Gyrich is a mole for Orchis and that there is a mole in S.W.O.R.D. as well. Returning to Krakoa to find that the symbiote-possessed Cable has conquered it and trapped the denizens in a symbiote-tree - which is devouring those Knull deems unworthy of joining his army - Manifold attempts to battle him but is overpowered until Frenzy breaks free and rips off Cable's cybernetic arm. Manifold conjures a miniature star and burns away the symbiote infecting Cable. Once free, Magneto orders the Five to prioritize the resurrection of mutants with anti-symbiote powers.
Retrieving a divine needle-like sword from Asgard's armory, Jane and Dani prepare a ritual to sever the Headless Celestial's connection to All-Black while Hildegarde confronts Knull and his forces on Midgard, fulfilling her part of the ritual before being taken over by a symbiote. Sensing it's in danger, the Headless Celestial assimilates Jane into its afterlife and attempts to persuade her to grant it new life. The rest of the Valkyries, stirred to action by Brunnhilde, complete the ritual and sever the Headless Celestial's connection to Knull, greatly weakening the dark god - who had been unaware of the source of the majority of his power until that point. Rejecting the Headless Celestial's offer, Jane is able to persuade it to free the souls it had imprisoned and to pass on to the afterlife itself.
Seeking revenge for his father, Dylan enters the battlefield and frees Captain America from Knull's control, but is attacked by Knull. Before Knull can capture him, Thor arrives and battles the dark god. Using all his strength, Thor manages to smash off Knull's lower jaw with Mjolnir, but Knull reforms it from living abyss and impales him with All-Black, directing the symbiote-controlled Celestials to destroy the city. Iron Man uses his symbiote-augmented armor to hijack control of one of the symbiote-possessed Celestials, while Thor -- badly wounded -- sends Huginn and Muninn to find the Silver Surfer and bring him to Earth. Within the Hive-Mind, Eddie, Rex, and Flash manage to infiltrate the God-Hive - the Hive-Mind's core - and Flash takes over a symbiote that had been disconnected from Knull's control by Thor, incarnating in the world of the living as a white symbiote-dragon. Furious, Knull takes over Rex's symbiote and confronts Eddie within the Hive-Mind, seeking to destroy him.
Captain America falls back to the sidelines to aid the Winter Soldier and Falcon in evacuating civilians, but is haunted by the experience of having been taken over by Knull and suffers from auditory and visual hallucinations until Barnes and Wilson are able to console him and restore his resolve. Mistakenly assuming himself to be responsible for Knull's invasion due to having brought the Venom symbiote to Earth, Spider-Man is snapped out of his despair by Reptil and helps the younger hero rescue a group of civilians from a colossal symbiote-dragon - restoring his resolve in the process. As they battle Knull's symbiote army, Kharsa notes that Namor has grown since they last met and asks if he's ready for her inevitable betrayal.
Knull ensnares Dylan in a sphere of living abyss and attempts to corrupt him, but Dylan tricks him with help from Marvel Girl and frees Cyclops, the Human Torch, the Invisible Woman, Thor, and Storm. Black Cat almost succumbs to the Yggdrasil Staff's limitless power, but realizes it would corrupt her and rejects it. Doctor Strange reclaims the staff and activates it, joining Cyclops, the Human Torch, and the Invisible Woman in blasting as many of the symbiotes as they can into the heart of the city. Namor and Sycorax conjure a tsunami, and Thor and Storm electrocute the symbiotes caught up in the ensuing flood to sever them from Knull's control. Furious, Knull attacks Dylan but is stopped by Marvel Girl, who attempts to read his mind to find his weaknesses. Initially despairing, she discovers his connection to the God of Light. Arriving at Earth, the Silver Surfer absorbs the God of Light into himself and phases through Knull's barrier, unleashing it to find its chosen host. In the God-Hive, the Venom symbiote breaks free from Knull's control and incarnates Eddie's codex as a building-sized version of Venom, but before he can attack Knull the God of Light resurrects him. Just as Reed Richard realizes the God of Light is the Enigma Force, it resurrects and bonds to Eddie Brock - turning him into Captain Universe.
The Silver Surfer and Knull face off and prepare to resume their ancient duel, but Eddie - transformed into a cosmic version of Venom - intercedes and takes Mjolnir and the Silver Surfer's Surfboard, fusing them into a battle-axe. With Knull weakened, Eddie easily trounces him and rips his symbiote-armor off before flying him into the Sun and obliterating his body with the Uni-Power. Returning to Earth to find Knull attempting to take over Dylan's body, Eddie uses the Uni-Power to remove and destroy Dylan's symbiote-half. The God of Light leaves Eddie and the Venom symbiote rebonds to him as the symbiote barrier over the Earth dissipates. As the one who vanquished Knull and freed them from the dark god's tyranny, the remaining symbiotes acknowledge Venom as their new god.
Under Knull's control, Fin Fang Foom attacks Asgard and is battled by Beta Ray Bill and Lady Sif, who manage to hold him off until Thor returns following Knull's defeat and vanquishes the Makluan's symbiote with a bolt of lightning.
The symbiote-dragon controlled by Flash Thompson's codex - acting on intel from Eddie about what happened to Cletus Kasady when he was bonded to a symbiote-dragon - travels to the cemetery where his body was buried and reanimates his corpse, bursting out of his grave.
The reborn Carnage symbiote, having bonded to a great white shark after escaping the Isla de Huesos, takes over a member of the crew of a whaling ship intending to join the fight just as Eddie Brock kills Knull. Some of the countless symbiotes comprising Knull's dome of living abyss rain down onto the whaling ship and ocean, bonding to the crew and numerous sharks. Through the symbiote hive-mind, Venom informs Carnage that Knull is dead and that he is the new King in Black; sentencing Carnage to death and commanding the symbiote-controlled sharks to devour him, though a piece would survive and bond to another shark.
Assisting with the rebuilding after Knull's defeat, Mister Fantastic and the Thing have a heart-to-heart and reaffirm their friendship over a beer; while the Human Torch and Sky reaffirm their love for one another.
As Namor had feared, Kharsa and Sycorax refuse to return to their exile and disappear in the wake of Knull's defeat, leading to Namor hunting for them with the help of his Defenders of the Deep. Learning that the soldiers he sent to guard the Black Tide's prison had been slaughtered, Namor dives into Harran's Rift to find Kharsa and Sycorax had freed the other members of the Black Tide, but is comforted by Dorma's spirit saying that she and Attuma will stand by him when the time comes to face the Black Tide again.
In the wake of the symbiote invasion, anti-extraterrestrial sentiment - especially towards symbiotes - increases dramatically, and Alchemax establishes a paramilitary force of Guardsmen with orders to capture or terminate any alien they come across on-sight - bringing a squad into conflict with Agent Anti-Venom, who is forced to reveal his resurrection. The Toxin symbiote - somehow revived and escaped from the Chthonic Island - bonds to a teenager named Bren Waters only to come into conflict with Bren's father - one of Alchemax's Guardsmen. Eddie Brock uses his powers as the new King in Black to help maintain peace across the universe, but ends up neglecting his duties as a father to Dylan in the process; and his powers place an enormous amount of strain on his still-mortal body, causing him to rapidly age in the space of a few months. Dylan is unable to adjust to the tedium of civilian life and not having powers, and is fatally shot by Jack O'Lantern while trying to stop him from mugging a woman. To save him, the Venom symbiote bonds to Dylan and they begin operating as Venom with Eddie's blessing.
Following Flash's return as Agent Anti-Venom, he discovers the reborn Carnage symbiote - controlled by Cletus Kasady's codex - has survived its apparent death and is attempting to recruit an army of symbiotes using the power granted to him by Knull. Contacted by Iron Man, Flash theorizes that Carnage has taken over the demagogical senator Peter Krane - who had joined the Friends of Humanity and sought to exploit xenophobic sentiment to become the President - and sets out to foil his plans; though in actuality Carnage had bonded to Peter Krane's son Arthur, recruiting the Agony, Phage, Scream, Riot, Lasher to his cause. Flash reunites with his one-time protegé Andi Benton and her new symbiote Silence, recruiting Bren Waters and Toxin, and Sleeper. Flash and his team ultimately fail to stop Carnage from assassinating Senator Krane and assimilating the Extrembiote when Iron Man attempts to use it to help the heroes. More powerful than ever, Carnage escapes with Agony and its host Gemma Shin in tow; while Arthur Krane becomes senator in the place of his deceased father, and Gemma Shin - sent by Carnage to monitor Krane - becomes the de-facto leader of the Friends of Humanity.
Heroes and Villains controlled by Knull
- Agony Symbiote
- Aja-Adanna (Shuri)
- Brainstorm (Valeria Richards)
- Cable (Nathan Summers)
- Captain America (Steve Rogers)
- Carnage (MJ Watson)
- The Choir (Ruth)
- Cloak (Tyrone Johnson)
- Cyclops (Scott Summers)
- Daredevil (Matt Murdock)
- Fin Fang Foom
- Foolkiller (Gregory Salinger)
- Hulk (Jen Walters)
- Human Torch (Johnny Storm)
- Hybrid Symbiote
- Iron Man (Tony Stark) (bonds with a symbiote, but avoids being taken over by Knull)
- Lasher Symbiote
- Ms. Marvel (Kamala Khan)
- Night Scrubber
- Phage Symbiote
- Plague (Cortland Kasady)
- Punisher (Frank Castle)
- Riot Symbiote
- Scream Symbiote
- Sky (Kaila)
- Storm (Ororo Munroe)
- The Thing (Ben Grimm)
- Typhoid Mary (Mary Walker)
- Venom Symbiote
- Virtue (Ethan Edwards)
Locations Ravaged by Knull
On his way to Earth, many worlds were invaded, conquered, or consumed by Knull's onslaught.
- Deep Space
- Shi'ar Space
- Zn'rx Empire
- Unnamed Zn'rx Colonies - destroyed
- Kree/Skrull Space
- Avengers (Vol. 8) #45
- Beta Ray Bill #1
- Black Cat (Vol. 2) #1–3
- Daredevil (Vol. 6) #26–27
- Deadpool (Vol. 8) #10
- Fantastic Four (Vol. 6) #29–30
- Guardians of the Galaxy (Vol. 6) #10
- King in Black Handbook #1
- King in Black: Black Knight #1
- King in Black: Black Panther #1
- King in Black: Captain America #1
- King in Black: Ghost Rider #1
- King in Black: Gwenom vs. Carnage #1–3
- King in Black: Immortal Hulk #1
- King in Black: Iron Man/Doom #1
- King in Black: Marauders #1
- King in Black: Namor #1–5
- King in Black: Planet of the Symbiotes #1–3
- King in Black: Return of the Valkyries #1–4
- King in Black: Scream #1
- King in Black: Spider-Man #1
- King in Black: Thunderbolts #1–3
- King in Black: Wiccan and Hulkling #1
- Miles Morales: Spider-Man #23
- Savage Avengers #17–19
- Spider-Woman (Vol. 7) #7–8
- S.W.O.R.D. (Vol. 2) #2–4
- Symbiote Spider-Man: King in Black #1–5
- Union #1–2
- Venom (Vol. 4) #31–34
- Absolute Carnage
- Incoming #1
- Marvel Spotlight (Vol. 2) #9
- Minimum Carnage
- Ravencroft #5
- Silver Surfer: Black #1–5
- Venom (Vol. 4) #4
- Venom 2099 #1
- Web of Venom: The Good Son #1
- Web of Venom: Wraith #1
- A trailer was released by Marvel on YouTube to promote this event:
- The event was first teased in the free Empyre magazine.
- Marvel reprinted the recommended issues leading to the event in Knull: Marvel Tales #1 and in the True Believers: King in Black line.
- The King in Black event takes place some time following the events of Black Panther Vol. 7 and the Last Remains arc of Amazing Spider-Man Vol. 5, and during and immediately after the events of the Prey arc of Thor Vol. 6,
- King in Black: Ghost Rider #1 is full of continuity errors. It infers that the events of Ghost Rider Vol 9 had only recently concluded, when they seemed to conclude shortly after Incoming #1, which was before Empyre. Even if they didn't, they had to conclude before the Age of Khonshu arc in Avengers (Vol. 8) #33-Avengers (Vol. 8) #38, since Mephisto has returned to power by then, and because Avengers (Vol. 8) #45 is part of this event. Finally, Mephisto is shown back in power in Amazing Spider-Man (Vol. 5) #60, which occurs days after Last Remains and therefore after this event.
- It is unclear where King in Black: Immortal Hulk #1 fits in the event's timeline, as it is set on Christmas Eve while King in Black: Iron Man/Doom #1 is set some time prior to Christmas, and the events of King in Black #1-5 seemingly occur in the space of several hours.
- The title of "King in Black" is a reference to Hastur, the King in Yellow (the central character of the Hastur Mythos, and a Cthulhu Mythos character). Knull was first named as such in Silver Surfer: Black #2.
- 3 minor appearance(s) of King in Black (Event)
- 14 mention(s) of King in Black (Event)
- 2 image(s) of King in Black (Event)
- 65 article(s) related to King in Black (Event)