Villain in X-Men, the Juggernaut is part of Magneto's Brotherhood of Mutants. The Juggernaut was created when Cain Marko found the gem of Cyttorak, which empowered him with energies, transforming him into an immortal avatar.

His powers include superhuman strength and durability, allowing him to use buildings as weapons and the ability to shatter mountains. Described to be physically unstoppable once in motion, and able to survive without food, water, or oxygen.