They constantly scream and sing and come in all different colors. Roddy meets one of these slugs in the sewer and screams in shock, and the slug screams back and slithers away. Through out the movie, they follow Roddy on his adventure back to Kensington. They serve as the film's chorus. At the movie's end, they join Roddy and Rita on their new Jammy Dodger 2 boat. They don't have names, they are just called The Slugs. It is unkown who voices them.