Don Moore was the writer of the Flash Gordon comic strip, taking over scriptwriting duties from strip creator Alex Raymond in August 1935. Moore was a former pulp editor. Raymond was the creator of several strips at the time; Flash Gordon, Secret Agent X-9, Jungle Jim; and needed Moore's scripting assistance. Moore lasted on the strip beyond Raymond's tenure; Austin Briggs took over the art from Raymond in 1944 when Raymond joined the Marines, and Moore continued as scripter.