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Cujo is a small ghostly dog that appears in the episode "Shades of Gray." Though seemingly harmless, he can change from a cute little puppy into an enormous, rabid dog monster.

History

Shades of Gray

Cujo is the ghost of a guard dog for Axion Industries. He came back to the human world in order to reclaim a squeaky toy he had left in the dog kennels. Cujo first appeared at Danny's school and, after transforming, ran off to Axion Industries, with Danny in hot pursuit. Danny's attempts to restrain him only led to the lab being destroyed (resulting in Valerie's father losing his job). Danny attempted to throw Cujo back into the Ghost Zone, only for the dog to escape again. He then began trying to tame Cujo, but the pair was attacked by Valerie, outfitted with her new ghost hunting equipment. Danny finally managed to locate the ghost dog's squeaky toy and Cujo happily gained liberation.

Reign Storm (Cameo)

S02M01 Cujo cameo in RS

Cujo cameo in "Reign Storm"

He later has a small appearance in "Reign Storm," fighting against Danny. This could be a mistake on the writers' part that Cujo simply just didn't recognize him, mistook him for an enemy, or was merely angry that he never visited him.

Kindred Spirits

S02e17 Cujo in KS

Cujo in "Kindred Spirits"

His last appearance was in "Kindred Spirits" in a flashback where Danny, Tucker, and Sam, were trying to get him back into the Ghost Zone. In that episode he was happy and cheerful as always and tried to lick Danny, Tucker, and Sam, but Danny turned intangible so only his friends were licked.

Personality

Cujo is just a dog and does what dogs do: bark and play. However, since he's a ghost dog, his aggressive anger can be unlimited and very ferocious if he's provoked in any way.

Cujo is always happy but also very cautious when he wants to be. He had a strong sixth sense and can tell whether a ghost is strong or not.

Relationships

Danny Phantom

Cujo viewed Danny as a 'master' or 'friend' since Danny is the one who found him and has thus been interacting with him. At first their meeting started off rocky as Cujo's continuous search for his missing toy caused several disruptions in Danny's life as well as the life of Valerie Grey, who would go on to begin hunting them and other ghosts as a result. The two ghost-beings managed to bond during Danny's attempts to train him, only to find the dog has already been trained (during his life as a guard dog for Axion Labs). Cujo seemed to greatly enjoy the attention given to him by his new halfa friend and continued to return to the human world, presumably to seek out Danny. It is unknown whether Danny regularly visited his new ghost 'pet' or if Cujo followed his 'master' everywhere.

Danny mentioned in "Fanning the Flames" that he desired a puppy in his younger years but was forbade to own one by his parents. His joyful interactions with the ghost dog (primarily while in his smaller form) show that he does enjoy the animal's company. Sam admitted that the two are sweet together, though their ghostly attributes also make their interactions "freaky."

Valerie Gray

Cujo unintentionally began Valerie Gray's hatred for ghosts and Danny Phantom when he destroyed her father's workplace while looking for his toy buried beneath the lab, costing her father his job. He continued to appear in several places where she is in the same vicinity as Danny, leading her to believe he was deliberately attacking her (he may have been tracking her as well due to her connection to Axion Labs). Cujo may hold a personal grudge against Valerie as he does become violent when in her presence, tearing apart her lunch bag without provocation and growling at her menacingly, though there is not much proof or motive for this theory.

After these constant attacks continued to ruin her life, Valerie takes up ghost hunting weapons and attempted to eradicate both the dog and the ghost boy who she thought was connected to his attacks.

Powers and Abilities

  • Invisibility: As a ghost dog he can turn invisible.
  • Intangibility: As a ghost dog he can turn intangible.
  • Passing through the Fenton Portal: During the series, he is the only ghost that can actually pass through the Fentons' ghost portal without any problem even when it's closed.
  • Rage-Induced Transformation: Whenever Cujo is upset, he transforms himself (unconsciously) into a big, powerful, savage, and almost unstoppable dog with amazing strength that destroys everything in his path. Upon seeing Danny, he becomes relaxed and happy, returning to his normal and harmless form. When he is transformed, his normal abilities are increased and his tail also becomes green fire.
    • Enhanced Strength: When Cujo is transformed, he becomes very strong and capable of bending metal, taking down titanium doors, and ripping out trees from their roots with incredible ease. Even when small, he can drag Danny around with ease.
    • Enhanced Stamina: When transformed, he is more durable than any normal human or dog.
    • Enhanced Resistance: When transformed, his body is more resilient to damage than any human or living dog.
    • Enhanced Speed: When transformed, he is faster than a normal dog.
  • Teleportation: He can teleport himself from one place to another at will, like he did when he appeared in the basketball game and when he disappeared after recovering his toy.
  • Sixth Sense (apparently): He can tell whether a ghost is strong or not.
  • Enhanced Senses: As any dog, his senses of smell and hearing are beyond normal human limits. He also may have night vision like other dogs.
  • Flight: When coming out of the Fenton Portal, he flew through the ceiling.
  • Invisibility
  • Intangibility
  • Cujo passing through the Fentons' portal
  • Cujo transformation
  • Cujo ripping out a tree
  • Cujo running
  • Teleportation
  • Teleportation
  • Teleportation
  • Cujo dragging Danny
  • Cujo speed

Sightings

Season 1

Season 2

Trivia

Ghost dog nicktoons globs of doom

Ghost dog in Nicktoons: Globs of Doom

  • Cujo also appeared in Nicktoons: Globs of Doom as the boss for Amity Park, being controlled and infected by the Morphoids-like blob.
    Ghost dog nicktoons globs of doom 2

    Ghost dog in Nicktoons: Globs of Doom 2

  • In the game Nicktoons: Globs of Doom, Danny called Cujo "Ghost Dog."
  • Danny's choice of calling the ghost dog "Cujo" is a homage to the deadly dog from the movie Cujo, made famous by Stephen King.
S01e10 Cujo necklace

Cujo's collar

  • Cujo seems to be wearing an Axion Industries dog tag, a possible indication that he was one of Axion Industries' dogs and was drawn there to look for his chew toy in the area.
  • Unlike other ghosts in the series who typically oppose Danny, Cujo adores him.

Gallery

S02e01 Sam's photo album
Click here to view the gallery.

Site navigation

V - E - H - DCharacters in Danny Phantom
Protagonists
Danny Phantom | Jack Fenton | Jazz Fenton | Maddie Fenton | Sam Manson | Tucker Foley
Antagonists
Archer Ghost | Bertrand | Box Ghost | Bullet | Clones of Danny | Dark Danny | Desiree | Elastica | Ember McLain | Executioner Ghost | The Extreme Ghostbreakers | Eyeball ghost | Femalien | Freakshow | Fright Knight | Ghost Writer | The Groovy Gang and Scaredy Cat | Guys in White | Hotep RA | Johnny 13 | Kitty | Lunch Lady Ghost | Lydia | Masters' Blasters | Medusa | ‎Monster Cat | Nightmerica | Nocturn | Pariah Dark | Pariah's soldiers | Penelope Spectra | Prince Aragon | Shadow | Skulker | Skulktech 9.9 | Sleepwalkers | Technus | Terminatra | Tucker Phantom | Undergrowth | Vlad Plasmius | Vortex | Vulture Ghosts | Walker | Youngblood | Youngblood's Assistant
Allies
Clockwork | Cujo | Dani Phantom | Frostbite | Pandora | Princess Dorathea | Wulf
Other Ghosts
Amorpho | Baby Face Boyle | Behemoth | Box Lunch | Crystal Leviathan | Dairy King | Ectopuses | Ember's Ghost Band | Empress She-Wolf | Gas mask ghost | Ghost Snake | Ghost Wolf | Ghost Worm | Ghost Zone Police Department | Klemper | Observants | Poindexter's classmates | Scarlet Samurai | Sidney Poindexter | Sojourn
Other Humans
Alicia | Casper High lunch lady | Connie | Damon Gray | Dumpty Humpty | Harriet Chin | Hobson | Ida | Irving Burns | Jasper | John Fenton Nightingale | Lance Thunder | Madam Babazita | Mayor Montez | Mr. Falluca | Mr. Lancer | Nate | Principal Ishiyama | Sam's Parents | Ms. Tetslaff | Tiffany Snow | Tracey | Tucker's Parents
Students
Ashley | Blond male student in green sweater vest | Blue capped male student in orange | Boy with purple hair | Brittany | Dale | Dash Baxter | Elliot | Girl with braces | Hannah | Jock with braces | Kwan | Male student in flash jersey | Male student in red stripes | Male student with green beanie | Mia | Mikey | Nathan | Paulina | Rebecca | Red hoodie male student | Ricky Marsh | Sarah | Spike | Star | Tiffanie | Valerie Gray
Animals
Delilah | Maddie the cat | Pookie

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