J.K. Simmons

'''Jonathan Kimble "J.K." Simmons is an American actor and voice actor who is best known for his roles as Dr. Emil Skoda in the ' television franchise, Vernon Schillinger on the drama series ' from 1997 to 2003, Tenzin in the ' spin-off series ', and Kai, the main antagonist of DreamWorks' '. He is also well-known as the current voice of the Yellow M&amp;M in the commercials since 1996.

For Disney, he voiced Seizaemon in Studio Ghibli's Pom Poko, Martin Smarty in Kim Possible, J.B. in Phineas and Ferb, J. Jonah Jameson in Ultimate Spider-Man, Avengers Assemble, and Hulk and the Agents of S.M.A.S.H. (a role he previously played in Sam Raimi's  trilogy), Stanford Pines in Gravity Falls, and Mayor Lionheart in the 2016 animated film Zootopia. He also played Siskel in the 1994 Touchstone Pictures film The Ref, Buffalo Bill Cody in Hidalgo, and Garth Pancake in .