Mr. Y is a character in HorrorVale. He is an eyeball private investigator.
Mr. Y's name is a play on the word mystery, as its unabbreviated form is Mister Y.
Mr. Y is a giant eyeball wearing a typical detective's vest, trench coat, and fedora. His body is composed of the nerves connected to the back of his eye, which appears to be floating.
Mr. Y was a submission for the Make Your Monster: Diamond Candy Edition contest to be a Party Member. While he was not chosen as a finalist, He was chosen as an Honorable Mention and given a role as an NPC. Mr. Y was designed and submitted by Danimation.