Philo and Gunge are Marjory the Trash Heap's two rat-like companions. The two live in the garbage pile with Marjory and act as her shills or barkers, announcing her ceremoniously to visiting Fraggles with alternating phrases: "You are in the presence of..." "The all-knowing..." "Trash Heap! Nyaaaah!"

The pair are nearly identical in appearance. However, Gunge is gray and has only one tooth, while Philo is pink and has two teeth. The pair are rarely seen apart, and usually serve minor comic-relief roles; however, they were featured more prominently in a handful of episodes. Philo and Gunge seek their home, and their origins and ties to Marjory are more fully explored. Gunge is accepted by the Doozers as their long-lost king (until a jealous Philo alters the teeth on the ancient portrait).