Agent Carter is a 2013 American direct-to-video short film featuring the Marvel Comics character Peggy Carter, produced by Marvel Studios and distributed by Walt Disney Studios Home Entertainment. It is the fourth Marvel One-Shot short film set in the Marvel Cinematic Universe (MCU), sharing continuity with the films of the franchise and taking place after Captain America: The First Avenger (2011). The film is directed by Louis D'Esposito from a screenplay by Eric Pearson, and stars Hayley Atwell as Peggy Carter, along with Bradley Whitford and Dominic Cooper. In Agent Carter, Peggy Carter sets out on a solo mission to acquire the mysterious Zodiac while facing sexism post-World War II at the SSR, a precursor to S.H.I.E.L.D.

Margaret Elizabeth "Peggy" Carter is a fictional character appearing in American comic books published by Marvel Comics. She is usually depicted as a supporting character in books featuring Captain America. Created by writer Stan Lee and artist Jack Kirby, she debuted, unnamed, in Tales of Suspense #75 as a World War II love interest of Steve Rogers in flashback sequences. She would later be better known as the aunt of Sharon Carter.