X-Force Warpath: James' older brother John was a member of the X-Men but died on one of their earlier missions. Though he originally blamed Xavier for his brother's death he ultimately realized they were not responsible and accepted Cable's offer to join X-Force. After the events of M-Day, James relocated to the "198" mutant encampment on the grounds of the Xavier mansion, and has since reconnected with Professor Xavier. Along with four other X-Men, Proudstar, once again using the Warpath alias, joined him on his quest to stop Vulcan from destroying the Shi'ar.

Professor X: Charles Xavier started with a dream, to locate young mutants and enroll them in a school using his ancestral mansion home as a base to train them to use their powers for humanity's benefit. Prior to his forming the X-Men, Charles encountered the alien scout Lucifer in the Himalayas. To prevent interference in his race's planned invasion of Earth, Lucifer dropped a massive stone block on Charles, crippling his legs leaving him confined to a wheelchair.