<Li> Scarlett Johansson as Natalie Rushman / Natasha Romanoff : An undercover spy for S.H.I.E.L.D. posing as Stark 's new assistant . Johansson dyed her hair red before she landed the part , hoping that it would help convince Favreau that she was right for the role . On why she chose the role , Johansson said , `` the Black Widow character resonated with me ... ( She ) is a superhero , but she 's also human . She 's small , but she 's strong ... She is dark and has faced death so many times that she has a deep perspective on the value of life ... It 's hard not to admire her . '' She stated that she had `` a bit of a freak - out moment '' when she first saw the cat - suit . When asked about fighting in the costume , Johansson responded `` a big part of me is like ' can I move in this ? Can I run in it ? Can I like throw myself over things with this ? ' And I think just the prep , you just have to put in the hours . That 's what I realized is that just putting in the hours and doing the training and repetition and basically just befriending the stunt team and spending all day , every day , just over and over and over and over until you sell it . '' </Li>
<Li> Scarlett Johansson as Natalie Rushman / Natasha Romanoff : An undercover spy for S.H.I.E.L.D. posing as Stark 's new assistant . Johansson dyed her hair red before she landed the part , hoping that it would help convince Favreau that she was right for the role . On why she chose the role , Johansson said , `` the Black Widow character resonated with me ... ( She ) is a superhero , but she 's also human . She 's small , but she 's strong ... She is dark and has faced death so many times that she has a deep perspective on the value of life ... It 's hard not to admire her . '' She stated that she had `` a bit of a freak - out moment '' when she first saw the cat - suit . When asked about fighting in the costume , Johansson responded `` a big part of me is like ' can I move in this ? Can I run in it ? Can I like throw myself over things with this ? ' And I think just the prep , you just have to put in the hours . That 's what I realized is that just putting in the hours and doing the training and repetition and basically just befriending the stunt team and spending all day , every day , just over and over and over and over until you sell it . '' </Li>
who plays agent romanoff in iron man 2
who plays agent romanoff in iron man 2
Scarlett Johansson
Scarlett Johansson