Head - HALO Trooper
Body - GI Joe Roadblock

His real name is Michael Cray. He joined the military after his parents were killed by terrorists. He became a Navy Seal and was then recruited into a military program that was designed to create super soldiers after being exposed to the Gen Factor. The surviving members formed Team 7. Cray developed a brain tumor due to his exposure. This was actually the start of the slow emersion of his powers. He developed an accelerated healing factor and psychokinesis.