Animation Voice Casts | The Hollywood Reporter Will Arnett, Ralph Fiennes, Zach Galifianakis and More | 'Lego Batman' Voice Cast 2/9/2017 - by THR Staff Billy Dee Williams, Jenny Slate and Rosario Dawson round out the star-studded cast. Read More FACEBOOK TWITTER YOUTUBE More from Animation Voice Casts | The Hollywood Reporter 19 Videos