13. Horton By Jim Carrey
One actor that’s a perfect fit for a voice role in an animated film is the hilarious Jim Carrey. In fact, often times he acts like an animated character in real life anyways. So when he was tapped to play the role of Horton in the Dr. Seuess film, Horton Hears a Who, it was a no-brainer. He later told reporters at Rotten Tomatoes that he loved the idea that “a person is a person no matter how small and the idea of worlds within worlds within worlds.” Who would’ve thought that Carrey was such a deep thinker?