The Demi-Dog is a fictional hellhound from Extreme Ghostbusters who is similiar in some ways to the Terror Dogs of the original Ghostbusters film. It is a giant, pug-like demon with red eyes who is the loyal pet of the Mistress and its own appearance in the city causes the dogs all around it to turn into monstrous versions of themselves.


The Demi-Dog, pet of the Mistress, is a powerful entity that acts as both her scout and herald to search for new worlds for its master to conquer.

In 1997, the Mistress broadcast a controlling frequency to New York City and remotely possessed the city's dogs. Demi-Dog guided the possessed dogs to do its bidding and bring it all the garbage they could find. It then compiled the trash into huge piles around Times Square.

When the Extreme Ghostbusters arrived, Demi-Dog was uninterested until they blasted it. Once Egon broadcast Slimer's recorded scream, Demi-Dog recoiled and allowed Kylie enough time to set a Trap and capture the entity. Its hold on the possessed dogs was released but the Mistress arrived soon after.

Powers and Abilities

When scanning the Demi-Dog, the P.K.E. Meter read full bars and showed unbelievable P.K.E. spikes. Proton Stream also failed to wrangle and confine it but the Trap was still effective.

Demi-Dog can emit a vapor that controls possessed dogs. Under its control, the dogs displayed sophisticated intelligence and organizing. It can even direct the dogs to employ group tactics.



  • The name "Demi-Dog" is a pun on the word "demi-god".
  • It was also revealed that Demi-Dog was a male.


           Ghostbusters Villains

Ghostbusters: Gozer | Stay Puft Marshmallow Man | Terror Dogs (Zuul & Vinz Clortho) | Library Ghost | Zombie Taxi Driver
Ghostbusters II: Vigo | Janosz Poha | Jack Hardemeyer | Scoleri Brothers | Theatre Ghost | Washington Square Ghost | Mink Coat
Ghostbusters (2016): Rowan North | Mayhem | Electrocuted Ghost | Gertrude Aldridge

The Real Ghostbusters: Grundel | Samhain | Cult of Cathulhu (Cathulhu, Spawn of Cathulhu & Clark Ashton) | Tiamat | Ghostmaster | Nurgot | Ulyoth | Vampiric Alien Ghost | Old One Cult (Old One, Vladimir Pavel Maximov & Dmitri Smerdyakov) | Wat | Sandman | African Fetish Ghost | Mee-Krah | Sleaze | Werechickens | Dr. McCatheter | Doomsday Stone | Quetzalcoatl | Quoatles | Glob | Toy Ghost | Possessed Subway Trains | Spectral Mass | Valkyries | The Crimelord | Barrow Wights | Dark Entity | Bat-like Things | Malachi | Killerwatt | Electric Possessor Ghosts | Pallo Mansion Ghosts | Rickey Roach | Winchester Wolf | Sammy K. Ferret | Victor | Apshai | Arzun | Ghash | Anshar | Kishnar | Master of Shadows | Evil's Baseball Team | Big Green | The Creature | Jack Higgins | Stag Pirates | Blacky
Extreme Ghostbusters: Achira | The Ringleader | Evil Clown Toy | Demonic Clowns | Tempus | Piper | Mistress | Demi-Dog | Cohila | Harasvelg | Shanbahac

Tiamat | Phantom Train Conductor | Senta | Morgan Le Fay | Zombies | Idulnas | Gozerian Terror Bear | Gozo | Koza'Rai | Dumazu | Cult of Dumazu | Ismael McEnthol | Massive Evil Clown Manifestation

Video Games
Cult of Gozer (Ivo Shandor, Black Slime Behemoth, Azetlor, Spider Witch & Chairman) | Sloars | Juvenile Sloar | Cruster | Crusto | Gozerian Servitors | Scuttler Queen | Hound Demons