Nightmare Membrane and Gaz

The Halloweenies inhabit the Nightmare Realm. All of them are monstrous in appearance, and some of them are doppelgängers of regular characters as this realm existed in Dib's imagination. They were dubbed "Halloweenies" by a confused and frightened Zim.


Nightmare Bitters

Main Article: Nightmare Bitters

Nightmare Bitters is the Nightmare version of Miss Bitters, and seemed to be the ultimate authority in the Nightmare Realm.

Nightmare Dib

Main Article: Nightmare Dib

The Nightmare version of Dib. He was locked in the Nightmare Version of the Crazy House for Boys, and has a lobotomy scar on a head that's even bigger than that of his "real-world" counterpart. For most of his time onscreen, he remained in the darkness, only revealing his face once.

Nightmare Membrane

Main Article: Nightmare Membrane

Nightmare Membrane is the Nightmare version of Professor Membrane. Dib encountered him in the Nightmare Version of his own house, along with Nightmare Gaz.

Nightmare Gaz

Main Article: Nightmare Gaz

Nightmare Gaz is the Nightmare version of Gaz, and was seen in Dib's Nightmare House, whilst drinking "Dark Poop" soda.

Nightmare White Coats

Main Article: Nightmare White Coats
Nightmare White Coats were the Nightmare Versions of the White Coats, who work worked in the Crazy House for Boys.

Nightmare Nny.

Main Article: Nightmare Nny
Nightmare Nny is a Nightmare version of the real Johnny C and due to his appearance in the Nightmare realm, it can be implied that Dib and Nny met off-screen.

Minor Halloweenies

Hummelflesh, Destroyer of Worlds

Main Article: Hummelflesh, Destroyer of Worlds

He seemed to be the leader of the Halloweenies (after Nightmare Bitters) until he failed in bringing Dib to Nightmare Bitters.


Main Article: Yolk

He was the Halloweenie who was sent by Nightmare Bitters to capture Dib after Hummelflesh failed.

The Enigma

Main Articles: The Enigma

He was the Halloweenie who attempted to reassure Nightmare Bitters when she felt stupid after saying "Let the head... thingy... start!"

Stock Halloweenies


concept art of Stock Halloweenies

Other Halloweenies are:

  • The Admiral
  • Bobby Joe Ray Billy Sue
  • Bride of Mortïs
  • Cage Monster
  • Dancing Skeletons
  • Droogle
  • Giggles
  • Gordon Peterson and Gordon Peterson Jr
  • Mr. Pinchy
  • Oculord
  • Oraface
  • Ouchmaster
  • Pepe
  • Poofter
  • Puncher of Heads
  • Ralfie
  • Simon Rikkis
  • Slobulator


  • Interestingly, despite the fact that all the Hallooweenies are in Dib's mind, none of them seemed to recognize that Zim is an alien.