Thing

Thing, otherwise known as "Mary-Kate" is a person with a lampshade with a face on it for a head. Thing appears as a lamp on numerous pages, but about halfway through the first book gets a person body. She is the sixth character to appear. In the Wizard of Oz dimension she is the Good Witch.

Biography
Thing appears first on the fourth page in the background while Hannah is getting her legs chopped off. She then continues to appear as a lamp for about seventy pages until she manages to get a human body. However, Hannah kills Thing and Thing's dead body lies on the street until Weird Guy's Mum gets the #MWRK to revive her.