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Born in the void that came before light, Knull forged the All-Black sword, then shaped the first symbiotes inside the skull of a beheaded Celestial. Imprisoned by his own creatures, he returns to invade Earth in King in Black. His powers and his bond with Venom are detailed below.
If Venom and Carnage already represent a deadly threat to Spider-Man, there is an entity far older, far more powerful and far more terrifying: Knull. The original creator of the symbiotes, this primordial god of darkness lies behind some of the greatest threats the Marvel universe has ever known.
First appearing in the comics in 2018 (Venom Vol.4 #3), Knull quickly gained the status of a mythological figure within the Marvel Universe. His role goes far beyond a simple clash with a hero: he is the very embodiment of darkness, destruction and absolute domination.
1. The cosmic origins of Knull
Long before planets and stars were created, there was only the void. It was in that absolute nothingness that Knull came into being. Hostile to the newborn light brought by the Celestials, he forged a legendary weapon: the All-Black, the first symbiotic sword, created from living shadow itself.
With this weapon, Knull beheaded a Celestial and used its skull as a forge to give birth to the first symbiotes. These creatures, shaped by his will, were made for one mission: to plunge worlds into darkness.
This direct link with the history of the symbiotes makes Knull a central figure not only for Venom, but for every story in which Spider-Man comes up against these entities.
2. The imprisonment and the awakening
The symbiotes eventually turned on their creator after developing a collective consciousness. They imprisoned Knull on a distant world, forcing their psychic link with him into a deep sleep.
Over the centuries, however, fragments of his essence carried on influencing certain hosts, such as Eddie Brock or Cletus Kasady. Every reappearance of Carnage or powerful symbiotic manifestation brought Knull closer to waking.
That awakening happens in full in the King in Black arc, where he lands on Earth with an army of symbiotic dragons, turning even major heroes into slaves of the darkness.
3. An enemy beyond Spider-Man
While Peter Parker has already faced powerful opponents such as the Green Goblin or Mysterio, Knull operates on an entirely different scale. Here the threat is not merely personal or local: it is cosmic. Even heroes like Thor, the Avengers and the Guardians of the Galaxy struggle to stand up to him. You can see all of Spider-Man's enemies in our complete guide.
That narrative scale lets the arcs tied to Knull cross several universes, including that of the Spider-Verse, where some alternative versions of Spider-Man have already faced symbiotic threats of divine origin.
📌 If you want to discover more landmark stories of the web-slinger against threats beyond the norm, have a look at our page on the great story arcs of Spider-Man.
4. King in Black: Knull's invasion of Earth
One of the most striking moments in Marvel's recent history is without doubt the King in Black arc. In this saga, Knull finally breaks free of his imprisonment and launches a massive invasion of Earth, wrapping the entire planet in eternal night.
Backed by his gigantic symbiotic dragons, he corrupts the greatest heroes: Captain America, Thor and even some members of the Avengers become his puppets. The streets of New York, already familiar with the battles of Peter Parker, turn into an apocalyptic battlefield.
5. Spider-Man facing a cosmic threat
In King in Black, Spider-Man is not only up against a physical enemy. He also has to cope with the ever-present fear Knull spreads. Even for a hero used to fighting figures such as Doctor Octopus or Venom, the scale of this fight is unprecedented.
Peter is forced to team up with Eddie Brock in an unlikely but necessary alliance. Together they try to free the corrupted heroes and find a way to break the link between Knull and his symbiotic army.
6. The psychological impact on Peter Parker
As so often in the great Marvel arcs, the psychological dimension matters just as much as the action. Faced with Knull, Spider-Man feels tiny, almost powerless. It echoes some of the darkest moments of his life, such as the death of Gwen Stacy or his failure to save the universe during the multiversal crises.
Those emotions give the arc a particular depth, strengthening the reader's emotional bond with Peter. They remind us that even in the face of a cosmic threat, Spider-Man remains a deeply human hero.
📌 If you want to explore other stories where Peter faces threats far beyond his powers, discover our complete feature on the Spider-Verse and its countless versions of the web-slinger.
7. Knull's boundless powers
Knull is the very embodiment of primordial darkness. His powers go far beyond those of other symbiotes such as Venom or Carnage. As the absolute master of living symbiotic matter, he can create, manipulate and corrupt at will.
His most fearsome weapon, the All-Black the Necrosword, can wound or kill even gods. With it, Knull has defeated cosmic entities and shaped monstrous creatures that obey him blindly.
8. The bond with every symbiote
As the creator of the symbiotes, Knull holds a telepathic and organic bond with each one of them. That means he can take control of any symbiote host, willing or not. Even Eddie Brock, bonded to Venom for years, very nearly lost control under the influence of the dark god.
This power of domination makes him a unique threat: he does not need to face his enemies physically, he simply turns them against themselves.
9. An influence beyond Spider-Man
While Knull is a landmark enemy of Spider-Man, his impact reaches well beyond the web-slinger's world. He has faced cosmic heroes such as Silver Surfer, Thor and the Avengers. Every time he steps in, the balance of the Marvel universe itself is at stake.
That intergalactic reach puts him in the same category as antagonists like Galactus or Thanos, but with a far more terrifying and visceral style.
📌 To discover other cosmic threats that have marked Spider-Man, have a look at our ultimate guide to merchandise, covering figures and objects inspired by the greatest story arcs.
10. The fall of Knull… and his legacy
The King in Black saga marks both the peak and the fall of Knull. Thanks to an unlikely alliance between Eddie Brock, the Avengers and even cosmic heroes, the god of the symbiotes is finally defeated. Yet his disappearance does not end his influence: fragments of his power, his creations and his potential heirs carry on prowling through the Marvel universe.
Many writers hint that Knull's shadow could reappear in future storylines, whether through a direct return or through the rise of new antagonists tied to his legacy.
11. Knull and pop culture
Though still absent from the big screen, Knull is already a cult figure among comics fans. His appearances in runs such as Venom (Donny Cates) have cemented his reputation as the ultimate supervillain. In video games and merchandise, his popularity is climbing fast thanks to his unique design and his malevolent aura.
You can already find him in collectible figures, art prints and even ambitious cosplay projects.
12. Why Knull is so fascinating
Knull embodies a rare mix of cosmic horror and heroic mythology. He is an antagonist who does not simply fight the heroes: he calls the very balance of their universe into question. His 'creator of the symbiotes' dimension makes him unavoidable in any discussion of Venom, Carnage or even Peter Parker whenever the black symbiote is involved.
13. Discover the world of the symbiotes at home
If Knull's story has captivated you, go further into the world of the symbiotes with our collection of Spider-Man figures featuring Venom, Carnage and other iconic enemies. To recreate those epic clashes, have a look at our Spider-Man fancy dress and costumes too, and add a touch of darkness to your collection.
Conclusion
Knull is not just one more villain on the long list of Spider-Man's adversaries. He is a primordial force, a creator and a destroyer, a reminder that even the most powerful heroes can be overwhelmed. Whether his shadow looms or his name is merely whispered, his legend keeps growing in the imagination of fans… and it is a fair bet that his return will make Marvel history all over again.
