Jonathan Kimble "J. K." Simmons (born January 9, 1955) is an American actor and voice actor. He is known for the television roles of Dr. Emil Skoda on the NBC series Law & Order (and other Law & Order franchise series), neo-Nazi Vernon Schillinger on the HBO prison-drama Oz, and Assistant Police Chief Will Pope on TNT's The Closer; the film roles of J. Jonah Jameson in Sam Raimi's Spider Man trilogy, and music instructor Terence Fletcher in 2014's Whiplash. He is also known for voicing Cave Johnson in the video game Portal 2 (2011), Tenzin in The Legend of Korra (2012), Stanford Pines in Gravity Falls, Kai in Kung Fu Panda 3 (2016), and Mayor Lionheart in Zootopia (2016). Simmons also reprised his role as J. Jonah Jameson in various Marvel animated series and video games. He has also appeared in a series of television commercials for Farmers Insurance. He has currently been cast in the role of James Gordon in the DC Extended Universe beginning with Justice League in 2017.
Simmons' performance in Whiplash received widespread critical acclaim and earned him more than thirty accolades, including the Academy Award, the Golden Globe Award, and the BAFTA Award for Best Supporting Actor.