The arrival of Knull in Venom: The Last Dance marks a pivotal shift for Sony’s Spider-Man Universe (SSU). As the creator of the symbiotes and a primordial deity of darkness, his presence looms over the entire third installment of the Tom Hardy-led franchise. While the film serves as a conclusion to the personal journey of Eddie Brock and his alien companion, it simultaneously functions as a high-stakes introduction to a cosmic threat that could redefine the future of these films. Understanding Knull’s role requires peeling back layers of comic book lore, movie-specific mechanics like the "Codex," and the implications of that sacrificial ending.

Who is Knull? The Comic Origins vs. The Last Dance

In the Marvel Comics landscape, specifically the seminal run by Donny Cates and Ryan Stegman, Knull is not just a villain; he is the King in Black, an entity who predates the universe itself. Before the Big Bang and the interference of the Celestials, there was only the Abyss, and Knull was its lord. When the Celestials brought light into his kingdom of darkness, he responded by forging the first symbiote in the form of a sword—All-Black the Necrosword—and decapitated one of the cosmic gods. This head would eventually become Knowhere, a familiar location in other Marvel media.

In Venom: The Last Dance, the cinematic version of Knull maintains much of this dark majesty, though his immediate circumstances are more restricted. We find him imprisoned on Klyntar, the throne-world that serves as a cage built by his own creations. Long ago, the symbiotes rebelled against their creator, realizing that his desire to extinguish all light would lead to their own destruction. This backstory provides the necessary motivation for the film's conflict: Knull is desperate to escape his cosmic prison, and he has unleashed his monstrous "Xenophages" to find the key to his shackles.

While the movie portrays him as a shackled god, the visual design—complete with his signature pale complexion and long white hair—honors the source material. He is voiced by Andy Serkis, a master of performance capture who brings a gravelly, ancient weight to the character. However, Knull remains largely in the shadows for this film, acting as a puppet master rather than a front-line combatant, which sets him up as a looming threat for future narratives.

The Codex: Why Venom and Eddie Are Targets

The central MacGuffin of Venom: The Last Dance is the "Codex." This isn't just a simple key; it is a biological byproduct that occurs only under very specific circumstances. According to the film’s lore, a Codex is forged when a symbiote revives its host from the brink of death. Because the Venom symbiote saved Eddie Brock’s life in the first film, their bond created this unique energetic signature.

Knull requires this Codex to unlock the prison the symbiotes trapped him in. The catch is that the Codex is only detectable and active when Eddie and Venom are fully bonded and in their transformed state. This creates a constant tension throughout the movie: if they transform to fight, Knull’s Xenophages can track them instantly. If they stay apart, they are vulnerable to the mundane threats of the military and the law.

This mechanic is vital because it raises the stakes beyond mere survival. It isn't just about Eddie and Venom being hunted; it's about the safety of the entire universe. If Knull obtains the Codex, his freedom would mean the "King in Black" would sweep across the stars, extinguishing all life. This realization leads to the film's most significant thematic questions regarding sacrifice and the nature of their partnership.

The Xenophages: Knull’s Relentless Hunters

To retrieve the Codex, Knull utilizes the Xenophages—monstrous, multi-limbed creatures designed specifically to hunt and consume symbiotes. These are not sentient beings in the way Venom or Carnage are; they are biological weapons, nearly indestructible and capable of tracking their prey across the vacuum of space.

The presence of the Xenophages shifts the tone of the film toward a survival horror-action hybrid. Traditional weaponry, as the military led by Rex Strickland soon discovers, is largely ineffective against them. Their arrival at the secret facility in Area 51 turns a high-tech stronghold into a slaughterhouse, forcing an unlikely alliance between the soldiers of the Imperium program and the various symbiote prisoners held there.

This battle showcases the sheer power gap between Knull’s minions and the standard symbiotes. Even with multiple hosts bonding with symbiotes like Agony or Lasher to fight back, they are consistently overwhelmed. It becomes clear that as long as the Codex exists, the Xenophages will keep coming through portals summoned by Knull, until there is nothing left.

The Area 51 Showdown and the Ultimate Sacrifice

The climax at the decommissioned Area 51 serves as the definitive "Last Dance." It is here that the emotional core of the trilogy meets its explosive end. As the facility is overrun by Xenophages and Knull begins to pour his consciousness through the rift, Venom realizes that there is no conventional way to win. The Codex can only be destroyed if one of its two components—Eddie or Venom—dies.

In a moment that highlights the growth of the character from a hungry parasite to a self-sacrificing hero, Venom chooses to save Eddie. He separates himself from his host and lures the Xenophages into the path of an acid shower, intended to dissolve everything within the containment area. This scene is both visceral and heartbreaking, as Venom bids Eddie a final farewell, ensuring that the Codex is erased from existence.

Rex Strickland’s final act of detonating the base ensures that the Xenophages are destroyed, but it also seemingly seals Venom’s fate. By the time Eddie wakes up in a hospital, he is alone. His crimes have been expunged by the government as a reward for his silence and his role in stopping the incursion, but the price was his "other half."

Deciphering the Mid-Credits and Post-Credits Scenes

For those wondering if this truly is the end of Knull’s story, the mid-credits scene offers a resounding "no." Knull is shown still on his throne, but the tone of his voice has changed. He declares that the universe is no longer safe and that the "King in Black" is coming. This is a direct nod to his title in the comics and suggests that while Venom destroyed the current Codex, Knull has seen enough of Earth and the symbiotes to find another way to escape.

Furthermore, the post-credits scene provides a glimmer of hope for Venom fans. In the ruins of the destroyed Area 51 base, a cockroach is seen crawling near a broken vial. Earlier in the film, it was established that symbiote samples were being kept in such vials. The camera lingers on the cockroach, which survived the acid and the explosion, possibly implying that a fragment of the Venom symbiote has bonded with the insect. While it’s a small, cryptic moment, it leaves the door open for the symbiote’s return in a different form.

Knull as the Future Big Bad of the SSU

Director Kelly Marcel has been vocal about the fact that The Last Dance is designed as an introduction to Knull, not his conclusion. The decision to keep him in the shadows for most of the film was a deliberate choice to build anticipation. In the same way the MCU teased Thanos through several films before his full arrival in Infinity War, the SSU seems to be positioning Knull as its overarching antagonist.

There are several directions the story could go from here:

  1. The Multiverse Connection: Given Eddie’s brief trip to the MCU (as seen in No Way Home and the beginning of this film), Knull’s reach could potentially extend beyond a single universe. If he is indeed a primordial deity, his threat is multiversal by nature.
  2. The Search for a New Codex: If Venom survived as a fragment, or if other symbiotes on Earth (like those bonded with the scientists in the lab) survived, a new Codex could potentially be formed, giving Knull a reason to target Earth again.
  3. Spider-Man Crossovers: Fans have long clamored for a meeting between Tom Hardy’s Venom and a version of Spider-Man. With Knull as a common enemy, this could provide the narrative weight needed for such a massive crossover event.

However, it is important to manage expectations. While Knull is a "God-tier" villain, the SSU has traditionally focused on more grounded, anti-hero stories. Transitioning into a full-scale "King in Black" adaptation would require a significant increase in scope and production value.

The Evolution of Eddie Brock

While Knull provides the spectacle, the emotional weight of The Last Dance rests on Eddie Brock’s shoulders. Over the course of three movies, Eddie has transitioned from a disgraced journalist to a reluctant hero. His relationship with Venom has been described as a "marriage," a "buddy-cop dynamic," and a "tragic romance."

In the final scenes of the film, Eddie arrives in New York City, fulfilling a promise he made to Venom. As he looks out at the Statue of Liberty, he is a man who has lost his best friend but gained his freedom. The irony is palpable: he is finally free to live his life without being a fugitive, but he no longer has anyone to share that life with. This somber ending gives the Venom trilogy a sense of finality that many modern superhero films lack.

Technical Brilliance: Andy Serkis and the Visuals

The portrayal of Knull and the Xenophages benefited greatly from the advancements in CGI and performance capture. Andy Serkis brings a layer of menace to Knull that feels distinct from previous SSU villains like Riot or Carnage. Instead of manic energy, Knull exudes a cold, ancient stillness. Even though he is seated for his entire appearance, his presence is felt.

The Xenophages themselves are a triumph of creature design. Their movement is unpredictable, and the way they "process" symbiotes is genuinely unsettling. The final battle in the Nevada desert and the subsequent base infiltration provide some of the most cohesive action sequences in the series, balancing the chaos of multiple symbiotes with the clear, terrifying objective of the monsters.

Final Thoughts on the Last Dance

Venom: The Last Dance manages to do two things at once: it provides a definitive, emotional ending for Eddie and Venom while opening a massive, dark door for the rest of the SSU. Knull is a character with enough gravity to pull in various other Marvel properties, and his introduction here is a clear signal that Sony has larger ambitions for the King in Black.

Whether we see Knull again in a Spider-Man film, a Sinister Six project, or a standalone King in Black epic remains to be seen. What is certain is that the stakes have been raised to a cosmic level. The "Last Dance" may have ended for Eddie and Venom, but for Knull, the music is just starting to play.

As of 2026, looking back at this trilogy, it stands as a unique experiment in the superhero genre—one that prioritized character chemistry over complex world-building, until the very end when the King in Black changed the rules of the game forever. The sacrifice made in the Nevada desert was a closing chapter for a duo we loved, but it was also a warning for a universe that isn't ready for the darkness that Knull brings.