Guy Vernon Moon is an American composer. He has written music for film and animated television series, such as Johnny Bravo, Cow and Chicken, The Grim Adventures of Billy and Mandy (first season only), The Fairly OddParents, Danny Phantom, Tak and the Power of Juju (theme music and three episodes only), Back at the Barnyard,Ben 10, and T.U.F.F. Puppy. He makes additional voices in various episodes of The Fairly OddParents.