Dixon, the son of a Delta Force career commando, studied at The North Carolina School of the Arts and at Savannah College of Art & Design. In 1992, he married fantasy author Mercedes Lackey; they live in the Tulsa, Oklahoma area. Dixon, a sports car enthusiast, is also a storm spotter and volunteer firefighter. Dixon has contributed artwork to Wizards of the Coast's Dungeons & Dragons source books, including Oriental Adventures, Epic Level Handbook, and Fiend Folio. His skill with depicting birds of prey has often led to commissions with the United States Military and with Save Our American Raptors, an organization devoted to raptor rehabilitation.