J. K. Simmons
Jonathan Kimble "J. K." Simmons (born January 9, 1955) is an American actor. He is best known for his roles on television as Dr. Emil Skoda in NBC's Law & Order (and other shows in the Law & Order franchise), Assistant Police Chief Will Pope in TNT's The Closer, neo-Nazi Vernon Schillinger in the HBO prison drama Oz, on film as J. Jonah Jameson in Sam Raimi's Spider-Man trilogy and the upcoming animated series Ultimate Spider-Man, Mac MacGuff in Juno and as the voice of Cave Johnson in Portal 2. In 2011, Simmons appeared on the Adult Swim series NTSF:SD:SUV::. He is now the voice of Tenzin, Aang's youngest son, on the Nickelodeon show The Legend of Korra.
Read more about J. K. Simmons: Early Life, Filmography