DJ is a citizen of the mutant nation-state of Krakoa.
Featured in these Comics
Personas
History
Little is known about DJ's past. His mutant powers probably manifested around puberty, and he was accepted to the Xavier Institute.
When the Xavier Institute originally began the training squad system, Mark was placed with Cyclops' Corsairs and codenamed DJ. Later for unclear reasons, DJ and Spector switched squads, and DJ become part of the Paragons under Wolfsbane.
Like the rest of his squad, DJ was upset and saddened by the departure of Wolfsbane. Along with the other Paragons and the Alpha Squadron, DJ was briefly mentored by Karma. Ultimately, former New Mutant, Magma stepped in to become the Paragons' mentor.
DJ was one of the many mutants to lose their powers on M-Day. The depowered students of the Xavier Institute were asked to leave the school, but the bus carrying several depowered students was attacked by one of William Stryker's Purifiers. After the bus exploded, X-23 tried to rescue DJ, but with his last words, he told her she was pretty. Elixir tried to heal him, but it was too late.
He was later reborn by The Five and seen on Krakoa after the resurrection of Wind Dancer along with other former students of the Xavier Institute.