Muzzlehatch is a man who drives around the city in a large shark-like car, who comes upon Titus lying faint on the waterfront and brings him home with him. He initially helps Titus not because he cares for him, but because he hates the city's police authorities, who are pursuing Titus as a vagrant. Muzzlehatch has a zoo at his house, and when not driving his car, he rides about on some of his animals, such as a stag or a llama. Despite his initial indifference, he becomes a mentor to Titus and helps him navigate his way about the city's confusing and dangerous life.