Deadline states that Emily VanCamp has been cast as the lead role, but the exact character isn't specified.
They also state they have heard Scarlett Johansson will be reprise as Black Widow for Captain America 2 as well.
Sharon Carter, in the comics, is the girlfriend to Steve Rogers aka Captain America as well as/was an Agent of S.H.I.E.L.D.
Emily VanCamp is known for the TV series Revenge, Brothers & Sisters, Everwood, and the film, The Ring Two.
The Russo Bros. are directing Captain America: The Winter Soldier which has an April 4th, 2014 release date and stars Chris Evans.
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