Black Widow

Black Widow (Real name Natalia Romanova) is a superheroine that hails from the Marvel Universe.

She is an uncover spy of S.H.E.I.L.D that posing as Tony's assistant. Natalia wishs to atone for her past as an assassin so she joins S.H.E.I.L.D and the Avengers for this reason. It is unclear whenether she is close friends with Hawkeye or has a crush on him