Nathasa Romanoff (Viúva Negra)

Natasha Romanoff, the spy we know as Black Widow was Natalia Alianovna Romanova, a woman trained, from a young age, by the Red Room, an organization with ties to the KGB, which trained young women to become lethal assassins and spies to serve the Soviet government. As a young woman, Natalia was married to Alexi Shostakov, unaware that he was, in fact, the Red Guardian, a great Soviet hero. In some versions of the character's story, she would have been a ballerina, in other retcons, this is nothing more than a series of memories implanted in Natalia to guarantee her an appropriate disguise. In her early years, she was sent to the United States to infiltrate and sabotage North American projects. Eventually, the character goes through a redemption plot and is invited by Captain America to join the Avengers. With this, Natasha Romanoff becomes a genuine ally for the Americans, helping to face several villains and secret agents.