Alexandra Elizabeth Sheedy is an American actress. She made her feature film debut in Bad Boys (1983) and came to prominence as a member of the Brat Pack with roles in Oxford Blues (1984), The Breakfast Club (1985), St. Elmo's Fire (1985), and Blue City (1986). She received three Saturn Award nominations for Best Actress for her performances in WarGames (1983), Fear (1990), and Man's Best Friend (1993). For playing a drug-addicted lesbian photographer in High Art (1998), Sheedy won the Independent Spirit Award for Best Female Lead. She also starred in the films Twice in a Lifetime (1985), Short Circuit (1986), Betsy's Wedding (1990), Only the Lonely (1991), and Life During Wartime (2009), as well as the series Single Drunk Female (2022–2023).

Bad Boys is a 1983 American coming-of-age crime drama film set in a juvenile detention center, starring Sean Penn, Esai Morales, and Clancy Brown, Alan Ruck and Ally Sheedy in their film debuts. The film is directed by Rick Rosenthal. The original music score was composed by Bill Conti.