Years before Isaac Christians became trapped in the body of a demon, a Soviet scientist briefly used the codename Gargoyle (The Incredible Hulk #1).
Like countless masterminds who would follow, the original Gargoyle was intent on enslaving the Hulk. After seeing that the subdued Hulk had reverted to the form of Dr. Bruce Banner, Gargoyle confessed that he longed to be rid of his own mutationsside effect of bomb research he had conducted for the Soviet government.
Lo and behold, Dr. Banner explained that through the selective use of radiation he could in fact return Gargoyle to an ordinary human being. Although this meant losing his superhuman intelligence, Gargoyle agreed to the procedure.
Dr. Banner, meanwhile, was just beginning to understand his own transformations into the Hulk, which resulted from exposure to gamma rays while risking his life to save teenager Rick Jones.