War of the Coprophages featured insect-like robots designed by roboticist and author Rodney Brooks. Morgan was also inspired by Orson Welles's 1938 radio broadcast of H.G. Wells's book "The War of the Worlds" (which had caused mass hysteria), with the episode's title being a direct reference to the novel (with the last part of the episode's title, "coprophages", referring to a dung eater). The town featured in this episode also takes place in—Miller's Grove—is a play on Grover's Mill, the setting of Orson Welles's 1938 radio adaptation. Originally, a scene featuring the sheriff discussing a noted case of hysteria from the 1930s was planned
Orson Welles experience, allowing Welles to concentrate on subjects that interested him. Welles performed and staged theatrical experiments and productions there. "Todd provided Welles with many valuable experiences", wrote critic Richard France. "He was able to explore and experiment in an atmosphere of acceptance and encouragement. In addition to a theater the school's own radio station was at his disposal." Welles's first radio experience was on the Todd station, where he performed an adaptation of "Sherlock Holmes" that was written by him. On December 28, 1930, when Welles was 15, his father died of heart and kidney failure at the age of