Sharon Carter is a fictional character in the Marvel Comics universe. She first appeared in Tales of Suspense #75 in 1966 and is known for her role as a S.H.I.E.L.D. agent. Sharon is the niece of Peggy Carter, a significant figure in the Captain America storyline, and she often finds herself involved in various superhero missions. In the Marvel Cinematic Universe, Sharon Carter is portrayed by actress Emily VanCamp. She plays a crucial role in the Captain America films, particularly in Captain America: The Winter Soldier and Captain America: Civil War. Sharon is depicted as a skilled fighter and strategist, often assisting Steve Rogers in his endeavors.