Ethan Green Hawke (born November 6, 1970) is an American actor, writer and director. He made his feature film debut in 1985 with the science fiction movie Explorers, before making a supporting appearance in the 1989 drama Dead Poets Society which is considered his breakthrough role. He then appeared in such films as White Fang (1991), A Midnight Clear (1992), and Alive (1993) before taking a role in the 1994 Generation X drama Reality Bites, for which he gained critical acclaim. In 1995, he starred in the romantic drama Before Sunrise, and later in its sequel Before Sunset (2004).

In 2001, Hawke was cast as a rookie police officer in Training Day, for which he received a Screen Actors Guild and Academy Award nomination in the Best Supporting Actor category. Other films have included the science fiction feature Gattaca (1997), the title role in Michael Almereyda's Hamlet (2000), the action thriller Assault on Precinct 13 (2005), and the crime drama Before the Devil Knows You're Dead (2007).