Cain Marko's mother died when he was young and he was raised by his father Kurt. With the (questionable) death of his father's colleague, Dr. Brian Xavier, Cain's father married Xavier's widow, Sharon. They moved into the Xavier Mansion (the later Xavier Institute for Higher Learning) in Westchester, New York. Cain was a bully to his stepbrother Charles, partly due to the fact that his father favored him over Cain. Unknown to Cain, Charles was succeeding because of his mutant ability to read minds, including Cain's. When he found out, Cain would never forgive Charles for this. During an argument with his father, Cain accidentally started a fire in his father's lab, the fire soon grew out of control and Kurt once again showed his preference for Charles when he saved him first. After going back for Cain, he died of smoke inhalation.

The Juggernaut is one of the strongest and most powerful physical beings in the Marvel Universe, capable of matching and even surpassing the likes of Thor and Hulk. Cain Marko is powered by the Crimson Gem of Cyttorak, which is a conduit Cyttorak uses to channel his magical energies into his avatar. Much like Jean Grey wielding only a fraction of the Phoenix Force yet retaining immense power, Cain Marko only wields a portion of of Cyttorak's power, yet also retains immense power. As the Juggernaut, Marko possesses endless superhuman strength or kinetic power, being capable of shattering mountains, lifting and using buildings as weapons, and with unlimited physical durability.

SCULPTED BY STUDIOGENESIS ARTIST RAY DANOS, PAINTED BY PAUL ARMAND ALMENDAREZ, PHOTOGRPAHY BY TOYMAN!!!