Natasha Romanoff/Black Widow – The Avengers (2012)

In the movie The Avengers, Natasha Romanoff (a.k.a. Black Widow), is one of the best spies and quite possibly the most skilled assassin. She is an agent for Nick Fury’s S.H.I.E.L.D. and plays a big part in assembling The Avengers. Equipped with several specialized weapons including widow stings and cluster bombs, how can any superhero fan not be a fan of Black Widow? On top of that, the character is portrayed by actress Scarlett Johansson.