20PROFESSOR X AND JUGGERNAUT
Juggernaut’s original name is Cain, and due to their situation growing up, he develops a jealousy and hatred of Xavier, as he believes that Xavier is favored over him.
Juggernaut (most recently voiced by Ryan Reynolds in Deadpool 2) was originally introduced in back in the 1960s. He’s had numerous roles since then, as both villain, hero, and anti-hero.
Introduced as the abused half-brother of Xavier (Professor X), he gets his power from the Crimson Gem of Cyttorak.
However, in the
comics and movies, his allegiance switches back and forth.
At one point, he was aligned with Professor X, but he realized that if he continued to associate with his brother and do good deeds his power would wane, so he returned to being a villain.