Jake Gyllenhaal is an American actor. Beginning his acting career as a child, Gyllenhaal appeared in films such as City Slickers (1991) and A Dangerous Woman. Growing as an actor, Gyllenhaal began to make waves with 1999’s October Sky and the indie cult hit Donnie Darko in 2001. Since, Gyllenhaal has appeared in critically acclaimed films like Brokeback Mountain (2005) and Nightcrawler (2014).