Sharon Carter is a character appearing in American comic books published by Marvel Comics. Created by Stan Lee, Jack Kirby, and Dick Ayers, the character first appeared in Tales of Suspense #75. Sharon Carter is a secret agent and an ex-field agent of S.H.I.E.L.D. under Nick Fury. She is the main love interest of the superhero Captain America / Steve Rogers. Sharon Carter was originally the younger sister of Peggy Carter. She was later retconned as Peggy's grand-niece because of the unaging nature of comic book characters.