Princess Python was a former member of the Circus of Crime.
Zelda DuBois aka "Princess Python" was a former member of the Circus of Crime. Hawkeye confronts her during a robbery on the docks. She attacks him with a giant snake but they are stopped by Falcon. During the battle with the Circus of Crime, she helps Hawkeye and Falcon to free the mind controlled Avengers from Ringmaster's control. After Circus of Crime are defeated and arrested, Hawkeye introduces Princess Python to Nick Fury and S.H.I.E.L.D. offering her a job and a better chance in life to which she accepted.