Walt Disney Animation Studios revealed the roster of voice talent tapped to help bring a voice, snort and a roar to the animal residents of the modern-day mammal metropolis of “Zootopia,” which opens in theaters March 4, 2016. “We had so much fun casting this film,” said director Byron Howard. “‘Zootopia’ features such a large and diverse range of characters—one of our biggest casts ever for a Disney Animation film. We needed talented actors who could help bring these animals to life.”