Jacob "Jake" Gyllenhaal (last name pronounced jill-en-hall) was born in Los Angeles, California, on December 19, 1980 to director Stephen Gyllenhaal and producer/screenwriter Naomi Foner, and is the brother of actress Maggie Gyllenhaal, who played his sister in Donnie Darko (2001). His father is of partial Swedish heritage and his mother is of Ashkenazi Jewish...