Frank Payne was an agent of the international espionage organization S.H.I.E.L.D., and the father of an adult daughter, Mia. When S.H.I.E.L.D. needed a costumed "supervillain" to go undercover in the criminal organization called the Corporation, Frank was given a snake-themed costume and a pair of wrist-mounted electrified metal coils. Using the false identity of "Frank Schlicting" from Racine, Wisconsin, and the codename of "Constrictor", he infiltrated the group, only to suffer a nervous breakdown and become a career criminal in earnest. As a result of his defection, S.H.I.E.L.D. allowed his daughter to believe that he had died. As the Constrictor, "Schlicting" debuted in combat against the Hulk, while attempting to assassinate the Hulk's friend Jim Wilson on behalf of the Corporation. The Corporation next sent him to assassinate Captain America; the Constrictor was trapped in a cave-in of S.H.I.E.L.D. headquarters, and was freed by Captain America.