Jonathan Kimble "J. K." Simmons is an American actor. He is perhaps 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 the Spider-Man franchise, as Mac MacGuff in Juno, and as the voice of Cave Johnson in Portal 2.
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