Bio: Tilda Johnson was born into poverty in New York City. At an early age, she discovered that she had a natural aptitude for science. As a teenager, she used her extensive knowledge to begin a career of crime. The Yellow Claw helped her develop a method for turning normal humans into obedient werewolf-like creatures, but the pair were defeated by Captain America.
She later worked with the criminals Stiletto, Discus, Man Mountain Marko, and the Eel, but they were defeated by Luke Cage and Iron Fist.
Nightshade later appeared as second-in-command of Superiaís Femizons.
#1 - 'Mistaken for Happiness, or: "The Team"' #2 - 'Prevenge, or: "The Plan"' #3 - 'Where the Money Is, or: "The Job"' #4 - 'Death From Virtue, or "The Getaway"' #5 - 'How Not To Be Good, or "The Payoff"'