Juggernaut

An unstoppable force clad in crimson armor that nothing can halt.

Juggernaut (Cain Marko) is a fictional character appearing in American comic books published by Marvel Comics. Created by writer Stan Lee and artist/co-writer Jack Kirby, he first appeared in X-Men #12 (July 1965) as an adversary of the eponymous superhero team. Since then, he has come into conflict with other heroes, primarily the X-Men, especially Professor X and Colossus. Cain Marko is a regular human who was empowered by a gem belonging to the deity Cyttorak, becoming a human juggernaut. He possesses superhuman strength and durability, and is virtually immune to most physical attacks; his helmet also protects him from mental attacks. Although not a mutant, Juggernaut has been featured as a prominent member of the Brotherhood of Mutants. He is also the stepbrother of Professor X.

Quick Facts

Species

Human (empowered)

Publisher

Marvel Comics

Debut

The X-Men #12 (July 1965)

Creators

Stan Lee (writer); Jack Kirby (writer/artist)

Alliances

United States Army
Brotherhood of Mutants
All-New Exiles
New Excalibur
Lethal Legion
X-Men
Thunderbolts

Partners

Black Tom Cassidy; ForgetMeNot

Also known as

Captain Universe; Kuurth: Breaker of Stone

Powers

Superhuman strength, stamina, and durability
Unstoppable momentum
Immortality
Psychic shield via helmet

Lore & Background

Cain Marko is the son of Kurt Marko, who becomes Charles Xavier's stepfather when he marries Sharon Xavier after the death of her husband Brian, for which Kurt is partially responsible. Kurt Marko favors Charles and abuses his own son, Cain. Cain resents Charles and bullies him frequently. Cain Marko and his step-brother Charles serve in the US Army and are stationed in Korea. Marko finds a hidden temple dedicated to the entity Cyttorak. On entering, Marko finds and holds a huge ruby and reads the inscription on the stone aloud: 'Whosoever touches this gem shall be granted the power of the Crimson Gem of Cyttorak! Henceforth, you who read these words, shall become ... forevermore ... a human juggernaut!' The gem channels Cyttorak's power into Marko. The transformation causes a cave-in, and Marko is buried, not being heard from again until a sudden assault on the X-Men's headquarters.

Reader's Guide

He is also the stepbrother of Professor X. Since his debut during the Silver Age of Comic Books, the character has appeared in over five decades of Marvel publications, featuring prominently in the X-Men titles and starring in two one-shot solo publications. The character has also been associated with Marvel merchandise including clothing, toys, trading cards, animated television series, video games. Juggernaut was played by Vinnie Jones in the film X-Men: The Last Stand (2006), by Ryan Reynolds in Deadpool 2 (2018), and by Aaron W. Reed in Deadpool & Wolverine (2024). In some adaptations (most notably the films), Marko is a mutant who was born with his powers, while in others they simply come from his costume.