Mamet is the daughter of American playwright, essayist, screenwriter, and film director David Mamet and actress Lindsay Crouse. Her maternal grandfather was playwright Russel Crouse,who co-wrote such classic American musicals as "Anything Goes" and "The Sound of Music."and one of her maternal great-grandfathers was educator John Erskine. She has a sister named Willa, who works as a photographer, and two half-siblings, Clara--who is also an actress--and Noah. Her father is Jewish and her mother