Jacob Benjamin Gyllenhaal ( JIL-ən-hawl, Swedish: [ˈjʏ̂lːɛnˌhɑːl]; born December 19, 1980) is an American actor who has worked on screen and stage for over thirty years. Born into the Gyllenhaal family, he is the son of film director Stephen Gyllenhaal and screenwriter Naomi Foner, and the younger brother of actress Maggie Gyllenhaal. He began acting as a child, making his debut in City Slickers (1991), followed by roles in his father's films A Dangerous Woman (1993) and Homegrown (1998).
https://en.wikipedia.org/wiki/Jake_Gyllenhaal