James Mathis III plays T’Challa, the Black Panther, in Marvel cartoons and video games. What’s the difference between him and Black Panther (the 2017 movie) star Chadwick Boseman – and did the wild success of the movie change his ways of approaching the character? “It’s still acting, and it’s still creating character,” he says. “You are limited in voiceover though … you have to figure out how to convey emotion using just your voice.”