J.K. Simmons

Jonathan Kimble "J. K." Simmons is an American actor. He is best known on television for his roles as Dr. Emil Skoda in Law and Order, Assistant Police Chief Will Pope in The Closer and Vernon Schillinger in Oz. In films, he is best known for his role as J. Jonah Jameson in the Spider-Man franchise and as Mac MacGuff in Juno.

In Portal 2, he will voice Aperture Science founder and CEO Cave Johnson.