* Jonathan Teatime. He's creepy enough when he's just terrifying Assassins and nailing dogs to the ceiling with that cheerful PsychopathicManchild smile, but as the plot goes on he starts manifesting very subtle supernatural powers...
** His depiction in the live-action movie reads like a rather AxCrazy [[Literature/CharlieAndTheChocolateFactory Willy Wonka]].
* ''Hogfather'' is also notable for thematic exploration of normal NightmareFuel -- as an EldritchLocation starts fighting back against Teatime's crew, more and more of them start to see manifestations of their irrational childhood fears. Except that those fears are now real and quite capable of killing them.
** Possibly the most horrifying of these nightmares is the Scissor Man, who could be easily described as a ''Velociraptor made out of scissors.''
* The TV adaptation made the ghost of Ma Lilywhite pants-wettingly terrifying.
* "It only kills monsters". This Troper still cringes when he reads that, simply because we're dealing with a human monster -- and the children recognized that.