X-Men Evolution Wiki
Biographical Information
Real Name: Cain Marko
Alias: Juggernaut
Age: 40+
Species: Mutant
Religion: Protestant Christian
Relatives: Kurt Marko (father)
Marjorie Marko (mother)
Charles Xavier (half-brother)
David Haller (nephew)
Affiliations: Independent
Interests: Breaking things
Physical Description
Gender: Male
Hair color: Black
Eye color: Brown
Height: 8'5
Character Information
Powers: High-level Invulnerability

Superhuman Strength

First Appearance: Survival of the Fittest
Voiced by: Paul Dobson

Character Male Mutants.png Independent.png Season 1.png Season 3.png
"You can't stop the unstoppable!"
Juggernaut to the X-Men


Juggernaut has a very violent personality and seems to have an unwavering hatred towards Professor Xavier, his half-brother. His appearance scares the wits out of humans when they see him throwing cars around as if they were no more than paper airplanes.

Powers and Abilities

Juggernaut's mutation grants him invulnerability as well as massive, superhuman strength and endurance. His strength and invulnerability make him physically unstoppable, as seen when he derailed a moving train simply by pushing it with one hand or when he walked through the defenses of the X-Mansion and Danger Room in mere seconds, destroying everything in his path with no harm to himself. His only weakness, however, psychic attacks are the only known method that can put him down. However, this only works when he isn't wearing his helmet, which was designed specifically to block telepathy and other psychic-based attacks on the mind.

Physical appearance

Cain is a powerfully built man with brown hair styled into a flattop, a towering height and solid frame. He sports an all red outfit with a helmet.

Early Life

Little is known about the Juggernaut's past, save for the fact that his father married Charles Xavier' mother after Xavier's father's death and that he is Xavier's half-brother. When he grew up, Cain used secret mystic energies from the Gem of Cyttorak to awaken his dormant X-gene, turning him into the unstoppable Juggernaut. In their first encounter, Charles managed to subdue Cain through a psychic attack and he was incarcerated in Stokes County Maximum Security Facility under the supervision of Captain Stone. He was permanently sedated in a stasis tank using muscle paralysis fluids to prevent him from breaking out, although Mystique managed to free him on several occasions later on.

Season 1

Years later, the mutant shape-shifter Mystique awakened the giant in an attempt to gain control of Xavier's mutant-tracking system, Cerebro. Juggernaut turned on her, preferring to exact his vengeance on his half-brother, and trudged to Xavier's School for Gifted Youngsters, forcing a union between Mystique's Brotherhood of Mutants and Xavier's X-Men in order to stop the giant. Using a lot of teamwork, the mutants finally open all the latches to Cain's psychic-blocking helmet, allowing Toad to yank it off. Professor X was then able to telepathically subdue his half-brother, and Juggernaut was returned to his stasis tank.

  • Survival of the Fittest

Waking up.

Mystique breaks Juggernaut out of his high-tech prison cell, where he was held in stasis.

Mystique tries to make a deal with Juggernaut. She says she'll get him out and take him to Xavier for revenge, all he has to do is bring her Cerebro. She gives him back his helmet and turns around to lead him out. He knocks her down and tells her that no one takes him anywhere, or gets in his way. Then he smashes his way out of the prison.

Juggernaut come for Xavier.

Juggernaut is trashing police cars on his way to find his half-brother.

Storm takes off in the X-Jet, she flies above the area where Juggernaut is traveling and creates a dense fog.

Juggernaut finally arrives at the Institute, with Mystique not too far behind. Wolverine meets him at the front door and tries to bring him down. Juggernaut flings Wolverine through the front of the house and follows him in, with Mystique sneaking in behind. As Juggernaut and Wolverine fight they cause massive damage, including destroying Cerebro.

Juggernaut reaches the Danger Room and knocks out Wolverine. Mystique comes in, yelling at Juggernaut for not holding up his end of the deal. He knocks her away and tells her that he doesn't make deals. Mystique crawls backwards and is trapped with Xavier as Juggernaut advances towards them.

At the Institute, Xavier tries to talk Juggernaut out of harming him. When Juggernaut won't listen Xavier activates the Danger Room. Juggernaut destroys everything in his path and is about to reach Xavier when the X-Kids and The Brotherhood arrive. He reaches for Xavier, but Jean uses her TK to pull him away. She can't hold him long though and collapses.

Taking Juggernaut down.

Wolverine tells them to try to get Juggernaut's helmet. Juggernaut goes for Jean, but the Blob rushes in and knocks him away from her. Nightcrawler ports in while he's stunned and unlatches one of the four latches holding on his helmet. Juggernaut throws Nightcrawler and then charges the Blob and knocks him back across the Danger Room.

Cyclops blasts him, but Juggernaut picks up a piece of the Danger Room wreckage and throws it at him. Avalanche uses his tremors and is able to make him stumble. Quicksilver is able to get to him long enough to open another latch. Juggernaut throws Quicksilver off, but Storm steps up and disorients him with wind gusts. He stumbles back and falls. Shadowcat and Rogue phase out of the wall and are able to get the last two latches. Toad uses his tongue to grab Juggernaut's helmet and yank it free. Xavier is then able to use his powers to take out Juggernaut.

Later Xavier returns Cain to prison.

Season 2

  • Fun and Games

Juggernaut regaining consciousness.

A malfunction occurs at the facility Juggernaut is held in. His cell is being error-prone and after being asked what their next move would be, the leading authority figure, Captain Stone tells them that they need to make a call. During a night at the Xavier Mansion, Charles Xavier begins to talk to his students, stating that there is an emergency. Xavier stresses to them that while Juggernaut has not broken out yet, his containment unit has began to fail. Charles reveals that he will be going alone while placing Scott and Jean in charge of the Xavier household.

Later, Charles Xavier and Captain Stone are viewing over Juggernaut, the captain stresses that he does not like the idea Xavier suggested. Charles backs up his belief and the captain goes along with it. Meanwhile, Charles and several armed guards gear up for the possibility that Juggernaut awakes while they carry out his plan. As Xavier works, Juggernaut begins to awake as he starts moving around, breaking the chains holding him in place before his cell's systems are reinitialized and his paralysis comes back into effect. After Juggernaut falls unconscious, Xavier reveals that someone purposely tampered with the system.

Season 3

Months after that, Mystique apparently again sabotaged the stasis tank, requiring Charles Xavier to leave his mansion and repair the tank. This gave her, with her guise of Risty Wilde, enough time to trick the X-Men into having a wild party and a young man calling himself Arcade into getting him information on the X-Men team, New Mutants, as well as possibly other secrets of the X-Men. For the good of Xavier, the X-Men, and quite possibly all humanity, the stasis tank must remain working, but mechanical systems do have their ways of failing.

  • The Stuff of Heroes
The Stuff of Heroes - 10 juggernaut.png

Juggernaut is "chased" off of a train by a security guard. Juggernaut tells him that he doesn't want to do it, but the guard doesn't listen, so he wrecks the train and marches off.

a News van is following the police cars as they chase after Juggernaut. They come across a pile of wrecked cars and watch as Juggernaut heads for this huge dam.

Juggernaut continues the destruction, taking out parts of the dam and military choppers.

The Stuff of Heroes - 28 jugg.png

The X-Men finally arrive at the dam and go head to head with Juggernaut. Spyke topples a huge generator while Juggernaut is on top and as he slides down the dam. Shadowcat jumps on top of him and phases him into the dam and leaves him partially trapped. Nightcrawler ports in and out releasing the locks on Juggernaut's helmet.

Juggernaut finally busts his way out of the dam wall. Cyclops blasts him full force with his beams and knocks the helmet off of his head. When Juggernaut keeps coming, Cyclops blasts him full force without his visor. Cyclops continues to pour it on, but Juggernaut keeps coming. He finally makes it to Cyclops and grabs him by the head, blocking his eyes and cutting off the beam. As Juggernaut pulls back his fist getting ready to smash Cyclops's head, then all three of the boys rush him and try to help. Juggernaut swats them all off. Shadowcat and Rogue phase up behind him and Kitty boosts Rogue up onto his shoulders.

The Stuff of Heroes - 35 cyc n jug.png

Juggernaut loses hold of Cyclops and Nightcrawler ports him to safety as Rogue continues to absorb his powers. Finally, the two of them collapse. Juggernaut rises to his feet first and goes after the unconscious Rogue. Rogue gets up before he can reach her, and as he swings at her full force, she bats his fist away. They go head to head, but Juggernaut can't touch Rogue. She lifts him up over her head and throws him from the top of the dam. In mid-flight, Iceman freezes him into a huge block of Ice. Then, they lose track of him.


  • Mystique has purposely released Juggernaut twice.[1] [2]
  • Though Juggernaut appears, he has no lines in Fun and Games
  • The Gem of Cyttorak Magneto uses in his enhancing chamber were the same ones that turned Cain Marko into the Juggernaut in the Marvel Comics.

In Other Media

  • This is Juggernaut's third appearance in an X-Men related cartoon, the previous two appearances being in Pryde of the X-Men and X-Men: The Animated Series
  • Juggernaut appears in Wolverine and the X-Men
  • Juggernaut appears in a couple films: X-Men: The Last Stand and Deadpool
  • Juggernaut appears in multiple video games, some of which include: The Uncanny X-Men, Marvel: Ultimate Alliance 2, and X-Men Legends