The Serpent first appeared in Fear Itself #1, published in June 2011. He was co-created by writer Matt Fraction and artist Stuart Immonen as the central antagonist for the 2011 Marvel Comics crossover event, Fear Itself. Fraction designed Cul Borson to be a figure of mythological gravitas, an enemy who could challenge the entire Marvel Universe on a fundamental, psychological level. The concept was to introduce a threat that didn't just require physical opposition, but also a conquest of the very emotion of fear. His name, Cul, is derived from the proto-Celtic word for “chariot,” and his surname “Borson” explicitly establishes him as the son of Bor, and therefore, Odin's brother. Immonen's design for The Serpent was crucial, depicting him first as a withered, ancient king and later as a powerful, armor-clad deity, visually communicating his escalating threat level as he fed on the world's growing terror. The introduction of Cul served to retroactively add a significant new player to the Asgardian mythos, creating a previously unknown family conflict for Odin that added layers of tragedy and ancient sin to the All-Father's long history.
The Serpent's history is one of ancient betrayal, cosmic power, and a philosophical war for the soul of Asgard itself.
In the primordial history of Asgard, long before Thor was born, Cul Borson was the firstborn of Bor and the rightful heir to the throne. While his younger brother, Odin, valued wisdom, sacrifice, and inspiration as the foundations of kingship, Cul held a darker conviction: true power and lasting order could only be achieved through fear. He believed that mortals and gods alike were base creatures, best governed by the terror he could instill in their hearts. His reign as the All-Father of Asgard was a dark age of oppression and dread. He was a ruthless and effective king, but his methods horrified Odin. The breaking point came when Cul, in a fit of rage, broke the sacred Yggdrasil, the World Tree itself. This act of sacrilege was the final straw for Odin. He marshaled all his might and waged a terrible war against his own brother. The conflict was so devastating that it reshaped the very firmament of Asgard. Ultimately, Odin was victorious. He stripped Cul of his power and name, erasing his brother from every saga, scroll, and memory in the Nine Realms. He became “The Serpent,” a nameless dread. Odin then sealed his brother in the deepest, most lightless place he could conceive: the Marianas Trench on Midgard (Earth). For millennia, The Serpent lay dormant, imprisoned in a tomb of his own rage, his existence a secret known only to Odin. His legend lived on only in a single, cryptic prophecy: “It is said that the Serpent will one day return. He will be freed by one of his own blood, and he will gather his chosen, The Worthy. They will visit their terror upon the world of men, and in the end, the son of the Serpent's brother will face him. It is a battle that the son of his brother will not survive.” This prophecy loomed over Odin for eons, a constant reminder of the day his greatest sin would return to haunt him. The Serpent's prison was eventually discovered by the forces of Baron Zemo and Red Skull's daughter, Sinthea Schmidt. Acting on ancient texts, Sin performed a ritual that shattered the prison, freeing the ancient God of Fear and setting the stage for the Fear Itself crisis.
The Serpent, Cul Borson, does not exist within the established canon of the Marvel Cinematic Universe. The character and the Fear Itself storyline have not been adapted into any of the films or television series produced by Marvel Studios. However, the core concept of a powerful, previously unknown, and imprisoned elder sibling of an Asgardian ruler was adapted in a thematically similar way for the film Thor: Ragnarok (2017) with the character of Hela. A comparative analysis reveals several key parallels and differences:
While Cul Borson remains a comic-exclusive entity, his narrative DNA can be seen in the MCU's portrayal of Hela, serving as a powerful example of how Marvel Studios adapts complex comic book lore for a cinematic audience.
The Serpent's power is immense, rivaling and at times surpassing that of Odin himself. His primary strength is derived from the abstract concept of fear, making him a unique and terrifying threat.
The Serpent's primary weapons in his war against Earth were The Worthy, eight individuals empowered by mystical hammers he created. Each hammer contained a fraction of his essence, transforming its wielder into an avatar of destruction, driven by their deepest fears and insecurities. Answering the common question, “Who are The Worthy in Marvel Comics?”, here is a complete breakdown of their identities and roles:
Worthy Name | Host Identity | Hammer Inscription | Role & Key Actions |
---|---|---|---|
Skadi | Sinthea Schmidt (Sin) | Breaker of Worlds | As the one who freed The Serpent, Sin was his most devoted follower and field general. Wielding the Hammer of Skadi, she led the initial assault on Washington D.C. and battled Captain America extensively. |
Kuurth | Cain Marko (Juggernaut) | Breaker of Stone | Kuurth became an even more unstoppable force of pure destruction than the Juggernaut. He carved a path of terror across the American Midwest, proving nearly impossible to stop, forcing the X-Men to seek aid from Cyttorak himself to depower him. |
Nul | Bruce Banner (Hulk) | Breaker of Worlds | Possessed by Nul, the Hulk became a creature of pure, unrestrained rage amplified by fear. He battled Thor and the vampire nation, causing immense collateral damage. His transformation was so absolute that not even the Hulk's persona could fight back, representing the fear of what he could truly become if he lost all control. |
Skirn | Mary MacPherran (Titania) | Breaker of Men | Skirn's power was a twisted reflection of Titania's deep-seated feelings of inadequacy and her fear of being weak. She became a brutal destroyer, fighting heroes across the globe and reveling in the terror she caused. |
Nerkkod | Attuma | Breaker of Oceans | Nerkkod amplified Attuma's ambition to conquer the surface world, turning him into a veritable sea god of destruction. He launched a massive assault on New Atlantis, seeking to destroy Namor and his kingdom. |
Angrir | Ben Grimm (The Thing) | Breaker of Souls | Angrir's possession of The Thing was one of the most tragic. It preyed on Ben Grimm's deepest fear: that he was a monster. Angrir went on a rampage through Yancy Street, destroying his own beloved neighborhood and forcing his Fantastic Four teammates to fight him. He was ultimately responsible for killing a civilian, an act that haunted Ben long after he was freed. |
Mokk | Paul Pierre Duval (Grey Gargoyle) | Breaker of Faith | Mokk turned Paris into a city of stone statues, embodying the fear of paralysis and helplessness. His actions were a work of nihilistic art, designed to break the faith and spirit of one of the world's most iconic cities. |
Kuyth | Carl Creel (Absorbing Man) | Breaker of Stone | Kuyth joined his partner, Skirn (Titania), in spreading chaos. His ability to absorb properties was magnified, making him a highly unpredictable and dangerous threat during the global conflict. |
As The Serpent does not exist in the MCU, he has no depicted powers or abilities. If a similar character were to be introduced, their powers would likely be adapted for cinematic clarity. Drawing from the Hela comparison:
Cul's relationships are defined entirely by conflict, domination, and ancient grudges. He is a solitary figure who sees others not as peers, but as tools or obstacles.
The Serpent does not have allies in the traditional sense; he has followers and weapons.
The Serpent's only true affiliation is with the dark, ancient pantheon of Asgard that he represents. He is the head of his own faction, seeking to establish a new, fear-based dynasty.
The Serpent's history in the Marvel Universe is almost entirely defined by one singular, cataclysmic event.
Fear Itself (2011) is the quintessential and, to date, only major storyline featuring Cul Borson. The entire event revolves around his escape, his campaign of terror, and the heroes' desperate struggle to stop him. The storyline begins with Sin discovering The Serpent's underwater prison and releasing him. A frail and withered Cul immediately announces his return by dispatching his seven mystical hammers across the globe. These hammers crash-land and seek out their hosts, transforming Juggernaut, Hulk, Titania, Attuma, Grey Gargoyle, Absorbing Man, and The Thing into his Worthy. The eighth hammer finds Sin, anointing her as Skadi. The world descends into chaos. The Worthy, acting as living embodiments of fear, begin their rampage. Kuurth (Juggernaut) is unstoppable, Nul (Hulk) creates massive destruction, and Angrir (The Thing) tragically lashes out at his own home. Global panic escalates, which in turn feeds The Serpent, restoring him to his full, youthful power. He raises his dark, underwater citadel from the depths and begins his march on the world. The heroes are fractured and overwhelmed. Captain America, leading the Avengers, finds his strategic plans failing against an enemy that thrives on the panic his forces cause. Thor, upon learning the truth of The Serpent's identity from a guilt-ridden Odin, defies his father's command to abandon Earth. Odin's plan is to raze the planet to the ground to starve The Serpent of the fear he feeds on—a price Thor is unwilling to pay. The climax sees The Serpent's forces laying siege to Washington D.C., with Cul himself arriving and shattering Captain America's shield. In Asgard, Iron Man gains an audience with Odin and is granted access to the realm's workshops, where he and the Dwarves of Svartalfheim forge new Uru-enchanted weapons for the Avengers. In the final battle in Broxton, Oklahoma (the site of the fallen Asgard), Thor, armed with the Odinsword Ragnarok, confronts his uncle. They engage in a mythic duel that fulfills the prophecy. Thor succeeds in striking a mortal blow against The Serpent, killing the God of Fear. However, just as the prophecy foretold, The Serpent takes a final few steps and strikes Thor down, killing him. With The Serpent's death, his spell over The Worthy is broken, and the hammers are rendered inert. Thor's body is carried away in a funeral procession by a grieving Odin, and Captain America reassembles his broken shield, a symbol of the world's resilience in the face of absolute fear. Though victorious, the world is left to mourn the loss of one of its greatest heroes.
As a character intrinsically tied to a single, major crossover event, The Serpent has had very limited exposure in alternate realities.
Unlike major villains such as Doctor Doom or Magneto, The Serpent has not been featured in prominent alternate reality comic storylines like the Ultimate Universe (Earth-1610) or Age of Apocalypse (Earth-295). His narrative is so tightly bound to the specifics of the Fear Itself prophecy and his relationship with the Earth-616 Odin that he has rarely been reinterpreted outside of his original context.