Margaret Ruth "Maggie" Gyllenhaal is an American actress. She is the daughter of director Stephen Gyllenhaal and screenwriter Naomi Foner Gyllenhaal and the older sister of actor Jake Gyllenhaal. She made her screen debut when she began to appear in her father's films. Gyllenhaal achieved recognition in a supporting role in the indie cult hit Donnie Darko . Her breakthrough role was in the 2002 sadomasochistic romance Secretary, for which she received critical acclaim and a Golden Globe nomination.