The scorned stepbrother of Professor Charles Xavier, the committed best friend of criminal Black Tom Cassidy, and both a longtime foe and sometime member of the X-Men, Cain Marko is the Juggernaut. After obtaining the Crimson Gem in the Temple of Cyttorak, he transformed into Cyttorak’s avatar on Earth and sought to use his newfound strength to exact revenge on Charles. © 2024 MARVEL