|This article is about Ronaldo's voice actor. You may be looking for Zach Callison.|
He is also an actor and producer, known for The Geniuses (2010), A.N.T. Farm (2011), and FCU: Fact Checkers Unit (2010). Zachary also provides the voice of David on Cartoon Network's Craig of the Creek. He is currently a professor at the USC School of Dramatic Arts, as well as a teacher at The Clown School in Los Angeles.