John Peter Sarsgaard (; born March 7, 1971) is an American actor. He is known for his roles in "The Man in the Iron Mask" (1998), "Boys Don't Cry" (1999), "The Center of the World", "Empire" (2002), "" (2002), "Green Lantern" (2011), "Lovelace" (2013), Kelly Reichardt's "Night Moves" (2013), "Blue Jasmine" (2013), "Black Mass" (2015), and "The Magnificent Seven" (2016).