Sharon Carter

Sharon Carter is a former agent of S.H.I.E.L.D. undercover as the neighbour of Steve Rogers.

Biography
Sharon Carter was assigned to protect and monitor Steve Rogers in his home apartment and was given the apartment opposite to his. When Nick Fury was attacked by the Winter Soldier in Steve's apartment she burst in to aid Steve.

After Captain America revealed the members of HYDRA and their plan, Brock Rumlow and his men walked into where Project Insight was being controlled and he threatened to kill an agent if he didn't put the Helicarriers in the air. Sharon then intervened and a gunfight brroke out. Rumlow however, manages to put the Helicarriers in the air. Sharon was later seen training with CIA.

Relationships

 * Steve Rogers/Captain America - Neighbor
 * Nick Fury - S.H.I.E.L.D. Director
 * Maria Hill - S.H.I.E.L.D. Deputy Director

Trivia

 * In the comic books, Sharon was originally written as Peggy Carter's younger sister, but was later retconned as her great-niece.  In Captain America: The Winter Soldier, Sharon's last name and any relation to Peggy are unconfirmed.