Catseye is the person in Hogfather who brought together the group of five ‘businessmen’ to assist Teatime in his invasion of the domain of the Tooth Fairy. The businessmen were property and people removers (thieves and murderers), but unlicensed by the guilds of Thieves or Assassins. They found plenty of employment from people who did not want to put the guilds to any trouble, frequently members of the guilds in fact.
Catseye had a reputation for being able to see in the dark, but it turns out that this was compensation for his deepest fear, the darkness of the cellar he used to be shut in as a child. When a security guard in the Tower of Teeth was brought to Teatime, he said to the man, “I am your worst nightmare.” In the end something like this happened to four of the businessmen. Coincidentally, Catseye plays to the original strength of the Tooth Fairy, who in the long before was the origin of bogeymen, the gut wrenching terror in the dark and shadow. Catseye was the first to go, leaving his boots behind, and a taste in the air of rats, damp and mold.