Bogeyman is a euphemism for a criminal who kills or takes children. This term, alongside "Nasty man", is used by parents in both the muggle and magical worlds to warn their children not to wander off, for if they do so a bogeyman will take them.


Name Reason
Lord Voldemort He was was considered a bogeyman until he began outright attacking people, and killing parents (such as Harry's) who stood in his way.
Fenrir Greyback A werewolf, he can be considered a bogeyman because he liked to sneak into children's bedrooms to bite them and possibly do other unsavoury things