Agent of S.T.Y.L.E.
She started off as an Iron Man villain but then became so much more. Natalia Romanova was born around 1928, had her life saved by Wolverine and Captain America before she hit puberty, and then became a recruit of the secret Black Widow program. Along with other young girls, she was trained in the mysterious Red Room facility to become an assassin and spy, her body chemically treated to increase her resiliency and vitality, which also resulted in a retarded aging rate. But during the modern age of superheroes she rethought her life and changed her allegiances. Since then she's been a superhero, a SHIELD operative, and even leader of the Avengers.
Got it? Good. Now let's chat about the many looks she's sported over the years.