original_query: Who is Jacob Benjamin Gyllenhaal?
query: Who is Jacob Benjamin Gyllenhaal?
answer: Jacob Benjamin Gyllenhaal is an American actor born on December 19, 1980. He is the son of director Stephen Gyllenhaal and screenwriter Naomi Foner, and the brother of actress Maggie Gyllenhaal.  He started acting as a child and is known for roles in films such as *October Sky*, *Donnie Darko*, *Brokeback Mountain*, and *Nightcrawler*. He has also performed on stage.