G.I. Joe Rise of Cobra Rex "The Doctor" Lewis Chief Experimental Doctor figure Variant in White Lab Coat
REX is the chief experimental doctor for M.A.R.S. Industries and developer of advanced nanotechnology. Disfigured in an explosion, he relies on life support equipment as he launches a diabolical plan to satisfy his thirst for power and revenge. His preferred weapon? M.A.R.S. Industrial radical exponential nano-injector system.