Comic book artist known for his work on Batman Incorporated with Grant Morrison, as well as the creator-owned books such as Officer Downe and Nixon's Pals, which were published by Image Comics. Born in Connecticut, Burnham grew up in Pittsburgh, Pennsylvania, where he first discovered comics. He studied at George Washington University. In 2002 Burnham moved to Chicago, where he started to work as a graphic designer. Since then he has produced work for DC Comics, Marvel, Image, Boom! Studios and Moonstone Books. A film called Officer Downe, based on Casey's comic, was released on November 18, 2016.