Idris Elba is officially a beast with a nation in the animated world of Zootopia. Elba voices Chief Bogo, the stern cape buffalo head of the Zootopia Police Department — serving and protecting the modern mammal metropolis created in Zootopia (in theaters March 4). J.K. Simmons, Tommy Chong get run of 'Zootopia' Even the British tough-guy actor is jealous of his beefy 2,000-pound character. "I've d