Yup, the above photo is the sexually seductive beauty Scarlett Johansson as Natasha Romanoff aka the Black Widow. Also along for the ride is Cobie Smulders (How I Met Your Mother) as Maria Hill and Emily VanCamp (Amanda Thorne aka the Greyson Family Slaying Serial Killer on the television show Revenge) as Agent 13. Hayley Atwell is back as Peggy Carter (Wasn't she left behind in the 1940's? Is she reduced the flashbacks or did she timetravel too?). Frank Grillo as Brock Rumlow aka Crossbones is the main villain. Samual L. Jackson is back as Nick Fury. Anthony Mackie is Sam Wilson aka the Falcon. Robert Redford is Alexander Goodwin Pierce. Sebastian Stan is Bucky Barnes aka the Winter Soldier. I'm not sure how many of the above mentioned actors and actresses will actually be on hand in Cleveland, Ohio when filming progresses from California (Where the below Captain America II---The Winter Soldier photos were taken) to Cleveland, Ohio. The Gentle Reader and I will know more as time progresses forward.
The normally bleach blonde Scarlett Johansson had her hair dyed red for the role of Natasha Romanoff aka the Black Widow (As required for the role). And it all eventually leads towards the Avengers II very very very soon in the nearby future.