Natasha Romanoff

Natalia Alianovna Romanova, more commonly known as Natasha Romanoff, is a fictional character primarily portrayed by Scarlett Johansson in the Marvel Cinematic Universe (MCU) media franchise based on the Marvel Comics character of the same name. Romanoff is depicted as an expert spy, trained in the Russian-based Red Room from childhood to become an assassin. She was later recruited by Clint Barton to join the United States government agency S.H.I.E.L.D., adopting the alias, Black Widow. Romanoff is later recruited as a member of the Avengers Initiative where she assists the team in taking down various supervillains including Loki, and Ultron…Wikipedia