Joan Mary Cusack (born October 11, 1962) is an American film, stage and television actress. A well-respected comedic character actor, she has twice been nominated for the Academy Award for Best Supporting Actress for her roles in the movies Working Girl and In & Out and is a three-time winner of the American Comedy Award as "Funniest Supporting Actress in a Motion Picture." Cusack was a cast member of the sketch comedy TV show Saturday Night Live in 1985-86. She is the sister of actor John Cusack.
Joan Cusack was born in New York City to an Irish American Catholic family. She was raised in Evanston, Illinois. Her mother, Nancy (née Carolan), is a former mathematics teacher and political activist. Her father, Richard Cusack, as well as her siblings Ann, Bill, John and Susie, have also been actors.
Cusack is an alumna of the University of Wisconsin - Madison. She is married to Chicago attorney Dick Burke, with whom she has two sons, Dylan John and Miles. She also owns a home in Three Oaks Township, Michigan.