Juggernaut

REAL NAME: Cain Marko

1st APPEARANCE: X-Men #12 (1965)

BIO: Cain Marko is the step-brother of Charles Xavier - and the avatar of the deity know as Cyttorak. Granted immense strength and durability by the Crimson Gem of Cyttorak, Cain opposed the X-Men for many years before changing his ways.

STATUS: Having allies with Black Tom Cassidy, Juggernaut joined the X-Men with the intent of destroying them from within - however, when he was betrayed by Black Tom he chose to join his brother's team of heroes for real.