Zachary Thomas "Zac" Moncrief (born January 8, 1971) is an American storyboard artist, director, and producer. He is best known for his work in Disney Television Animation productions. For Phineas and Ferb, he was a director starting with "I Scream, You Scream", a writer and storyboard artist starting with "Gaming the System", and the storyboard supervisor starting with "The Great Indoors".