Mark Armstrong was a very successful advertising executive. He was so successful that he was able to retire at a young age. Thanks to his retirement, he was able to practice and hone his meta-human abilities. Centrix is one of the few public Canadian superheroes that used to fight small crimes until he was introduced to the Global Guardians by the Martian Manhunter to help swell the ranks after the Global Guardians were decimated by an attack.
Due to his wealth, he was able to finance the Global Guardians during his stay on the team. He is from Vancouver, BC Canada. He lives on Vancouver Island as his base and home for his family.
Centrix can project invisible, energy force waves from his body. He carries projectiles with him that he uses to throw with his force waves, making them formidable weapons.