For Disney, she voiced Pony Head in the Disney XD animated series Star vs. the Forces of Evil and Bellwether, the main antagonist of the 2016 Disney animated feature film Zootopia. She also played Miss Nanny in the 2018 reboot series of Muppet Babies and Cahu, a member of the Four Shades of Awesome in the finale episode of Elena of Avalor.
Slate is also known for creating Marcel the Shell with Shoes On, which was screened, along with several Disney features, at AFI Fest 2010.
