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"The world is not what it ought to be. Humanity longs for the eternal for a world beyond time, because time is what enslaves us. Time is an insult. Death is an insult. Doctor, We don't seek to rule this world... We seek to save it."
―Kaecilius to Doctor Strange[src]

Kaecilius was a sorcerer and a former member of the Masters of the Mystic Arts who became disillusioned with the Ancient One when he felt his mentor was not allowing other dimensions to come to Earth, which he believed could then reunite him with his deceased wife and son. He formed the Zealots with the intention of defeating the Ancient One and bringing the inter-dimensional being known as Dormammu to Earth, but was challenged by his former brothers-in-arms as well as a new Master, Doctor Strange. He was defeated and became part of the Dark Dimension for all eternity, gaining him the immortality he had desired.


Early Life

Losing His Wife

"Time is unmerciful... I knew before the doctor even set foot in that room that you were lost to me, just as our son was lost to us, and you were going to be joined together in a place I could not follow. I failed you both..."
―Kaecilius to Adria[src]

Kaecilius and his wife Adria lived a happy life in Copenhagen, despite having to deal with the death of their son. One day, while they were ambling near the Nyhavn Canal, Adria was struck with a terrible illness which took ahold of her. Despite Kaecilius' best efforts, he could not save her and lost his wife, a loss which broke his heart and led him to desperately seek out some kind of understanding of why. This eventually led Karl Mordo to introduce him to the Ancient One, who promised to help him find answer when he joined the Masters of the Mystic Arts and trained under her leadership.[1]

Retrieving the Dark Scepter

"That relic you hold has far too much power to be contained by someone who doesn't fully comprehend the mystic arts."
―Kaecilius to the Witch[src]

Through 20 years of training with the Ancient One, Kaecilius became a trusted member of the Masters. When the Dark Scepter was stolen by a Witch in London, Kaecilius joined Wong, Daniel Drumm and Tina Minoru in tracking it down. Engaging in a brief battle with the witch, Kaecilius and his allies were soon able to defeat her and retook the Scepter from the thief before returning to Kamar-Taj to continue their training.[2]

Disillusion with the Ancient One

"Do you feel that you have found the truths which you had sought out when you came here?"
"I haven't."
"And if there were more that I could teach you...?"
"Then we'd be eager to learn."
―Kaecilius and the Zealots[src]

Despite everything, Kaecilius became more disillusioned and began feeling that the Ancient One had failed in her promise to help him find meaning to his wife and son's tragic deaths or found a way to bring them back together. Becoming angrier by this, Kaecilius formed the Zealots and rebelled against his allies, aiming to find their own meaning within the Mystic Arts that the Ancient One was hiding from them.[1]

Serving Dormammu

Theft of the Book of Cagliostro

Kaecilius Hood

Kaecilius prepares to behead the librarian

"Master Kaecilius, that ritual will bring you only sorrow."
Ancient One to Kaecilius[src]

Kaecilius had heard of the Dark Dimension as a place without time where he and the Zealots would be immortal. He knew that the Ancient One herself drew power from the Dimension and believed her to be a hypocrite as she forbade others from doing the same. One night, Kaecilius and the Zealots went to the Kamar-Taj where they strung up the librarian and Kaecilius used his Scythe Daggers to behead him, dropping the librarian's severed head into a bucket underneath him.


Kaecilius steals the Book of Cagliostro

Without alerting the other Masters of the Mystic Arts, Kaecilius and the Zealots moved through the library with the intent of stealing a spell to bring Dormammu to Earth. The Zealots soon found what they were looking before as they stole one of the pages from the Book of Cagliostro which held the spell which would allow them to complete their own plans to summon the Dark Dimension to Earth. Before they could leave Kamar-Taj however, the Ancient One herself appeared, warning that whatever plan Kaecilius now had to make a deal with Dormammu, would bring him and his followers nothing but pain and sorrow, while Kaecilius readied both of his daggers.

Zealots Mirror

Kaecilius is attacked by The Ancient One

Knowing the power of the Sorcerer Supreme, instead of fighting her, Kaecilius then fled with his followers to a portal which took them into the London Sanctum where they ran down the streets hoping to get away from the Ancient One. However, the Ancient One managed to corner the group before she dragged them into the Mirror Dimension, ensuring that nobody outside was hurt and making it harder for them to escape. As the Ancient One used power from the Dark Dimension to manipulate the world, Kaecilius called her a hypocrite.

Theft of the Book of Cagliostro 7

Kaecilius prepares to fight the Ancient One

The Ancient One used her Dark Dimension abilities to wrap the reality around them, twisting the buildings to give herself an advantage as she used her superior skills to fight several of his followers using just her spells and Tao Mandalas on the side of a London building. While many of them were now being defeated at the hands of the Sorcerer Supreme despite their efforts, Kaecilius accepted that he would not win the fight as decided to change his own battle tactics.

Theft of the Book of Cagliostro 8

Kaecilius and the Zealots make their escape

While many of his Zealots were being killed in the Mirror Dimension by the Ancient One as she turned the entire building onto it's side, forcing them to hold on for deer life, Kaecilius focused on getting away. Instead of continuing to fight, Kaecilius used his Sling Ring to create a portal which Lucian and the other remaining Zealots jumped through to escape still with the book pages, leaving the Ancient One behind and unaware of where they had all escaped to.[3]

First Ritual

DS First Ritual 2

Kaecilius prepares to begin the first ritual

"If I'm wrong then he will ignore us and we will each die our own slow and natural death. But we're not the ones knocking, he is, and he's waiting for someone like us to let him in."
―Kaecilius to the Nervous Zealot[src]

Having now obtained the Book of Cagliostro's vital pages, Kaecilius gathered together the surviving Zealots in order to read the page and contact Dormammu. Arriving at an old abandoned church, Kaecilius was questioned by one of the Zealots over what would happen if their plan did not work, although Kaecilius just insisted that it would as he had complete faith, while the Zealot noted that he may have deciphered the ancient and complex spell incorrectly.

DS First Ritual 4

Kaecilius gains some power from Dormammu

Kaecilius then noted that if he was wrong then they would all then eventually die painful and natural deaths on Earth, but he once again insisted he believed Dormammu would be listening to them as he wished to return. Kaecilius began the ritual, summoning Dormammu, with the Zealots then gaining power from the Dark Dimension which showed themselves by burning symbols painfully into their foreheads as the Zealots repeated all of the words speaking together.[3]

DS First Ritual 11

Kaecilius prepares to kill a Nervous Zealot

With the ritual complete, Kaecilius saw that Lucian and the others had gained the burnt symbol onto his head, with the only Zealot without being the one who had questioned him earlier, proving that his faith in both Kaecilius and Dormammu was not strong enough. Unwilling to have a single follower who was not devoted to their own faith, Kaecilius told him that his death would not be natural before summoning a blade and cutting down the Zealot.[4]

Second Ritual

DS P 04

Kaecilius greets and prepares to kill a Priest

"We will now receive the power to destroy the one who has betrayed us. The one who betrays the world."
―Kaecilius to the Zealots[src]

Eventually, Kaecilius managed to decipher the spell and used it to empower himself and all the Zealots, summoning some of the power from the Dark Dimension which increased their abilities and gave them unparalleled control while inside the Mirror Dimension. In order to unleash the new spell, Kaecilius found a church he had deemed suitable for their own upcoming ritual. Upon arriving inside, Kaecilius politely spoke to a Priest about the afterlife while all of his Zealots surrounded him, with Kaecilius promising to prove the afterlife was false by killing the priest by summoning a blade and violently cutting him down.[4]

With the priest now dead, having been cut down by Kaecilius' blade which he summoned, the Zealots gathered together in a circle around the stolen page from the Book of Cagliostro as Kaecilius began to read the words contained in the pages which the Ancient One had hidden. The process turned the skin around their eyes dark purple and outlined silver and cracked while Kaecilius was given visions of Dormammu and the Dark Dimension.

Doctor Strange Teaser 31

Kaecilius unleashes his new found powers

Overflowing with these newly found abilities, Kaecilius began to use the power to manipulate the world around him, proving that he could affect the real world in the same way that the Ancient One could only affect the Mirror Dimension, making him even more powerful than his former teacher. Kaecilius and his Zealots then left the church in order to finally defeat the Masters of the Mystic Arts and then destroy the Sanctums in order to allow Dormammu to finally come to Earth and free them of the curse of time and pain as they desired.[3]

Attacking the Sanctums

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Kaecilius destroys the London Sanctum

"People think in terms of good and evil, but really, time is the true enemy of us all. Time kills everything."
"What about the people you killed?"
"Tiny momentary specks within an indifferent universe."
―Kaecilius and Doctor Strange[src]

Kaecilius and the Zealots attacked the London Sanctum, battling and eventually killing its protector, Sol Rama who had attempted to escape through the portal back to Kamar-Taj. As both Karl Mordo and Wong watched on in horror, Kaecilius and the Zealots caused a massive explosion which destroyed the entire Sanctum and ripped a massive blast through Kamar-Taj, causing great damage.

DS Spot 40 - 1

Kaecilius challenges Master Daniel Drumm

With the first part of thier scheme completed, the Zealots next went to the New York Sanctum where Kaecilius manipulated the world around him to gain access to the building. Once inside, they were challenged by Daniel Drumm, the Protector of the Sanctum. Kaecilius greeted his former ally, telling him that his role as the Protector only meant that he would die soon. They did battle and the Zealots soon overpowered Drumm, as Kaecilius mortally wounding him.

Doctor Strange Final Trailer 18

Kaecilius meets Doctor Strange

Before Kaecilius could deliver the final blow and kill Drumm, he was confronted by Doctor Strange who was watching the conflict. Not recognising Strange, Kaecilius questioned how long he had been at Kamar-Taj, only to mistakenly assume Strange's name was Mister Doctor and when Strange noted his surname was Strange, Kaecilius agreed that it was indeed an odd name. Kaecilius then killed Drumm before charging forward to kill his latest enemy.

DS Spot 19 - 1

Kaecilius battles against Doctor Strange

Kaecilius and the Zealots attacked and used their new abilities to prevent Strange from running away as Kaecilius manipulated the hallways. After Strange stranded two of his followers in different locations, Kaecilius attacked Strange himself and exchanged blows, eventually throwing him through several glass cabinets. He was about to kill Strange when the sentient Cloak of Levitation intervened and fought back against Kaecilius, eventually being overpowered.

Doctor Strange 55

Kaecilius trapped by Doctor Strange

While Kaecilius was distracted, the Cloak of Levitation convinced Strange to lock Kaecilius in the Crimson Bands of Cyttorak. Thus entangled, Kaecilius was unable to move but explained his beliefs to Strange after he had removed his mouthpiece so he could talk, also explaining how the Ancient One drew power from the Dark Dimension. He noted that the doctor did not have his Sling Ring before Lucian arrived and stabbed Strange. While Strange was fighting Lucian, Kaecilius escaped.[3]

Battle of the Mirror Dimension


Kaecilius chases after Doctor Strange

Freed, Kaecilius tried to attack the Sanctum again. This time, Doctor Strange stole his Sling Ring and brought them into the Mirror Dimension where they could not harm the real world. The Dimension enhanced Kaecilius' abilities and he used them to change the gravity and shape of the Dimension, though both of his enemies were able to counter the changing landscape and distorted physics, Strange with the Cloak of Levitation and Mordo with his Vaulting Boots of Valtorr. He almost killed Strange and Mordo in a battle before the Ancient One intervened.

DS Spot 21 - 3

Kaecilius stabs the Ancient One

She said she had been trying to save Kaecilius from himself and that the immortality Dormammu promised was not what he claimed it was. Kaecilius called her a hypocrite before letting his Zealots attack her. When the Zealots failed to kill the Ancient One, Kaecilius stabbed her himself and using his recovered Sling Ring, throwing her into the Earth Plane, where she fell hundreds of stories to the ground below. Kaecilius then used his Sling Ring to escape to the Hong Kong Sanctum with the remaining Zealots.[3]

Battle at the Hong Kong Sanctum


Kaecilius arrives at the Hong Kong Sanctum

"Isn't it beautiful? A world beyond time. Beyond death."

Kaecilius collected the Blonde Zealot from the desert and, upon arrival in Hong Kong with the use of their Sling Ring, Kaecilius and his Zealots found themselves challenged by the Masters of the Mystic Arts outside the Hong Kong Sanctum, with the Masters now being led by Wong, with Kaecilius telling Wong that he was on the wrong side of history, before attacking and killing Wong, who was armed with the Wand of Watoomb by trapping him underneath rubble. With Wong dead, it did not take long for Kaecilius and the Zealots to overpower the remaining Masters and kill Tina Minoru, the Sanctum's guardian.

Doctor Strange 53

Kaecilius watches the destruction he caused

With nobody left to challenge them in their own mission, the Zealots quickly destroyed the Hong Kong Sanctum and at last succeeded in bringing Dormammu and the Dark Dimension onto Earth. While the Zealots and Kaecilius looked on with great satisfaction at their work, many other civilians were killed in the battle as the Dark Dimension consumed the sky, causing buildings to fall apart and the innocent people to be crushed under rubble. Kaecilius was unaffected by their suffering and awaited the eternal life promised by Dormammu.

Kaecilius x Strange

Kaecilius attempts to kill Doctor Strange.

However, Doctor Strange arrived at the scene with Karl Mordo just in time to witness the destruction. To Kaecilius' horror, Strange began to reverse time, using the Eye of Agamotto. Kaecilius merged himself out of the time reversal with all of his followers and attacked Strange. While fighting, Mordo trapped Kaecilius into a tiled wall. However he eventually broke free and stopped Strange from completing the spell, freezing time all around them and ensuring that the Dark Dimension would come back despite Strange's best efforts.[3]

Gaining Eternal Life


Kaecilius learns that Dormammu is defeated

"What is this?"
"Well, it's everything you've ever wanted, eternal life as part of the one. You're not going to like it. You should have really stolen the whole book because the warnings come after the spells."
―Kaecilius and Doctor Strange[src]

During the fight against the Masters of the Mystic Arts on the streets of Hong Kong, when Doctor Strange flew into the Dark Dimension, Kaecilius initially believed that he had joined their side. While still fighting the Masters of the Mystic Arts however, on Strange's return, he discovered that Strange had bargained with Dormammu for Earth's survival, having used the Eye of Agamotto to provoke Dormammu long enough into leaving Earth after killing Strange multiple times in an endless time loop.


Kaecilius is fused with the Dark Dimension

Kaecilius and the Zealots were angered of Dormammu's defeat and Strange's victory, but before they could do anything about it, Kaecilius and the remaining Zealots began transforming into particles from where they stood and gravitated inside the Dark Dimension away from the Earth Plane, granting them the eternal life they had desired all along as Mindless Ones, inhabiting within Dormammu's realm.[3]


"When he first came to us, he lost everyone he ever loved. He was a broken man searching for answers in the Mystic Arts. A brilliant student, but he was proud, headstrong. Questioned the Ancient One, rejected her teaching. He left Kamar-Taj. His assistants followed him like sheeps seduced by false belief."
Karl Mordo[src]

Kaecilius was a proud and darkly driven man. Eerily similar to Stephen Strange, he displayed arrogance and an inflated sense of self-worth, but like Strange, Kaecilius had successfully mastered the mystical arts and suffered great loss in his life. The death of his child and wife fueled him with anger and hate, but he initially sought to heal himself of grief upon their deaths, seeking the Ancient One and Kamar-Taj to achieve this.

Unfortunately, Kaecillius could not comprehend how death was a natural part of life rather than just a step behind humanity's evolutionary peak. Viewing time and death as the true enemy of everything, he was enraged by how the Ancient One did not permit access to other dimensions, but siphoned energy from the Dark Dimension to power herself anyway. Feeling cheated out of reconciling with his dead family by his hypocritical mentor, Kaecilius eventually went down a malevolent path - cold and nihilistic. However, Kaecillius came to believing that he was doing good as surrendering Earth to Dormammu would grant humanity immorality and rid the world of death, writing his actions to Strange as saving the world.

Even so, Kaecilius is ultimately still a delusional psychopath, as he remorselessly commits murder, despite his desire to cleanse the world of death, justifying it to himself by claiming that his ends justified the means. His blinding hatred for life and the Ancient One also gives him a selective magical view on the world. He views his endgame for defying the natural order as more important than the reasons of his former master; considering her oppressive for not allowing him to use Dormammu's power to fuel his own and blinding himself to Dormammu malevolence, revering the demon as a benevolent figure. Kaecillius could not comprehend how the rules of nature occasionally needed to be broken to protect reality rather than just create endless life.

Perhaps due to spending so much time in Kamar-Taj and mastering his mystical abilities, Kaecilius seems to have somewhat lost track with the modern world, as notably, when he confronted Stephen Strange at the New York Sanctum, he refers the latter as "Mister Doctor", due to a confusion beforehand, and also confused his name as Strange for claiming that being called "Mister Doctor" was strange.

Powers and Abilities


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Kaecilius manipulates the world around him

  • Master Sorcerer: Noted as a brilliant student of the Ancient One, Kaecilius is one of the most powerful Masters of the Mystic Arts, possessing a extraordinary mastery of the mystic arts and with the help of numerous mystical artifacts and relics, in addition to his astral powers, Kaecilius is able to gain access to a multitude of mystical powers.
    • Eldritch Magic Manipulation: Kaecilius is able to create, shape and manipulate Eldritch Magic.
    • Teleportation: Using a Sling Ring, Kaecilius is able to open a fiery portal to another location, gaining ability to move tremendous distances instantaneously.
    • Inter-Dimensional Travel: Using the same Sling Ring, Kaecilius can travel between different dimensions and universes, crossing over different planes of existence or traveling across various forms of reality.
    • Dark Dimension Magic Manipulation: After performing the ritual to tap into the powers of the Dark Dimension, Kaecilius was able to manipulate space. This allowed him to warp and twist the landscape of the Mirror Dimension, as well as the inside of the New York Sanctum. Also, he could run on walls and ceilings, totally disregarding gravity. He could also use his manipulation of space to conjure Space Shards. In addition, his momentum seemed enhanced to the point where he could easily send someone flying with his attacks, especially while defying gravity.


  • Master Martial Artist: Kaecilius is highly skilled in martial arts and in both armed and unarmed combatant. He maintained the upper hand in his duel with Stephen Strange, but was defeated after Strange managed to trap him. Kaecilius also managed to win in his second fight against the Ancient One, ultimately killing her. In the final fight, Kaecilius used his martial arts skill to battle Strange again, and seemingly maintained the upper hand until Strange decided to secure a bargain with Dormammu.


This section requires expansion
  • Sling Ring: A mystical object which enables the wearer to open a fiery portal to another location.


  • Scythe Daggers: Kaecilius' personal weapon, a pair of curved daggers that he used to attack his enemies.



  • Adria † - Wife
  • Son †




Red eye
  • When he and his followers are absorbed into the Dark Dimension, they are transformed into decayed, fossil-like figures with red glowing symbols on their faces, resembling the Mindless Ones from the comics, which are sometimes portrayed as Dormammu's servants.


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