Johnny Test Wiki
Dukey Test
Jt char dukey 174x252.png
Dukey, standing on two legs.
Powers and abilities *High Intelligence
  • Flying
  • Super Strength
  • Shape-Shifting
  • Teleportation
  • Oral Force-Fields.
  • Power Dog
  • Super Vision
Gender Male
Age Unconfirmed
Hair Color Light Brown
Eye Color Black
Status Alive
Aliases Du-kay

Not a dog
That kid with the rare hair disorder
Fuzzy buddy
Mymuttdog (Tiny'mon name)
Dukundra (Tiny'mon evolution)

Personality Happy, Playful, Sweet, Patience, Genius
Friends Johnny Test

Susan Test
Mary Test
Bling-Bling Boy (sometimes)
Gil Nexdor
Mr. Black
Mr. White Jillian Vegan
Joni West
Aqua Dude
Dutchy (female counterpart)
The General
The Beekeeper
Mega Roboticle
Malibu Stacy
Green Dragon
Pink Rabbit
Chew Toy
Claire Nefarius
Larius Nefarius
Speed McCool
Repto Slicer
Princess Maribel
Phobious McPhobe

Enemies Missy

Bling-Bling Boy (sometimes)
Dark Vegan
Brain Freezer
Zizrar the Mole King
Mr. Mittens
The Tickler
Evil Johnny
Miss X and Miss Z
Brain Freezer
Blast Ketchup
Bling-Bling Boy's Technicians

Alignment Good
Love Interest Missy (Mostly a rivalry, but Dukey seems to like her; full relationship in Saturday Night's Alright for Johnny)
Likes *Anything that involves meat
  • Johnny
Dislikes Johnny in trouble, meatloaf
Family Johnny Test
Susan Test
Mary Test
Lila Test
Hugh Test (owners)
Pets {{{Pets}}}
First Appearance Pilot Episode (as Poochie)
Voiced by Daran Norris (pilot)
Tom Kenny (Johnny Test Promo Kids WB)
Louis Chirillo (Season 1-4)
Trevor Devall (Season 5-6, 2021 reboot)
Tom Wayland (Web Series)
“I leave for five minutes to get corndogs, and you're already in trouble?”
— Dukey to Johnny

Dukeson Leonard "Dukey" Test is Johnny's pet dog brother and the deuteragonist of the show. Johnny got him as a birthday gift for his 11th birthday and he was later mutated by Susan and Mary, giving him the ability to speak and walk on two legs.


He is the voice of reason in many episodes but often winds up joining in Johnny's crazy schemes and adventures (usually because of steak or Johnny tempting him into it). Despite his devotion to Johnny, Dukey frequently expresses deep disdain towards Johnny's less intelligent antics, believing their situation as master and pet reversed. He usually gets more stressed than his master in dangerous situations and often gets worried whenever there's a risky test for Johnny from his sisters.


Despite his uniquely human abilities, however, Dukey is still a dog who can't deny his natural dog urges. His dog habits greatly annoy Johnny's sisters, to which Johnny takes deep delight. Usually, once per episode, when trouble arises, and there's no alternative, Dukey will say something along the lines of "Here's an idea: RUN!" Dukey has admitted that he's ticklish and can't resist a belly rub from Johnny.

Similar to Johnny's "Johnny X" form, Dukey also has a secret identity which, unlike his master, he does not particularly enjoy called "Super Pooch" (although he "Super Dukey" and "X-Pooch"). He also likes to drink hot coffee. His favorite food is steak (all kinds of steak with porterhouse being his favorite).

Dukey also appears to have a strong memory of certain situations. For example, when Johnny attempts to catch a cold from Sissy Blakely to skip school but gets sent flying out of the house, Dukey says something along the lines of "Didn't get the cold?" even though he was waiting outside Sissy's home at the time.


Johnny Test

Dukey and Johnny's relationship can be seen as similar to a boy and his dog but due to the fact that Dukey has the ability to speak, their relationship can be more easily described as brother-like. Dukey likes to hang out with Johnny a lot but he is frequently annoyed by Johnny's shenanigans and often tries to talk Johnny out of them by reminding him of the potential consequences of Johnny's actions but Johnny usually does not listen to him.

Super Pooch/Super Dukey

Dukey goes as Super Pooch/Super Dukey (later episodes) when Johnny goes as Johnny X. Dukey claims that he hates becoming Super Pooch in "The Revenge of Johnny X". When in "SuperPooch" form, Dukey can fly and in the Third Season has shapeshifting powers, the ability to sense what others are doing, and the ability to teleport. He has the power to fly as a sidekick (to Johnny) but usually crashes when landing. Also, in "The Destruction of Johnny X" Dukey claims that his Super Pooch costume gives him a mega-wedgie. Dukey isn't as enthusiastic about being a superhero as Johnny is, but he is forced to go along with his schemes on account of reverse psychology, guilt, and offerings of steak.

Dukey's powers

  • Flying
  • Super Strength
  • Shape-Shifting
  • Teleportation (only in "Johnny X: The Final Ending")
  • Oral Force-Fields.
  • Power Poots (sometimes)
  • Super Vision
  • Confrontation
  • Power Dog


The gallery for Dukey can be found here.


  • Dukey is a bit similar to Brian Griffin from Family Guy.
  • Johnny's 100th Episode shows that he was already intelligent before he was experimented on and just didn't know how to talk.
  • He also has an allergy (as said in the episode Li'l Johnny), but from what he didn't say although it speculated to be from large dust mites. quote "and they make people and dogs sneeze..."
  • Although the creators of the show have explained Dukey's background, it was eventually revealed to the audience in Johnny's 100th episode: Johnny wanted a dog for his 11th birthday gift, so instead of picking a small cute puppy as Hugh wanted, he chose the most lonely and friendly dog out of all, Dukey. Later, Susan and Mary gave him super intelligence as they hated his behavior as a normal dog.
    • In the same episode, his breed was revealed to be "Westminster Farting Mutt". (But it's obvious that he is actually a mixed breed since the pound owner supposedly called him that due to his poor nature and poor state when he was in the pound.)
  • Dukey usually beats Johnny in video games such as skateboarding video games and dance games.
  • Super Pooch's name is later changed to just Super Dukey after season 1.
  • Super Pooch/Dukey's costume resembles that of classic Hanna-Barbera character Dynomutt, except with a reverse fin on the cowl to match Johnny X's look. (One reason the writers may have chosen to prefer "Super Dukey" as his superhero name could be the large "D" on the costume's chest piece, a holdover from its origin.)
  • Dukey's love interest is Sissy's dog Missy, as he falls for her in "Saturday Night's Alright for Johnny
    • He is the boyfriend of Missy.
  • Dukey has a spot on his butt he can't reach and loves it when someone scratches it.
  • As of Johnny Goes Nuts, Trevor Devall has replaced Louis Chirillo as the voice actor of Dukey. According to IMDB, Chirillo left so he could be with his wife in Brazil. However, sound bits of Chirillo may be used in conjunction with Devall's lines. Chirillo also briefly returned to the role in a bumper for Cartoon Network's 20th Birthday celebration.
  • He is one of the two characters to appear in all episodes, which is Johnny.
  • Sometimes Dukey has disguised as a human with clothes and costumes in some episodes, and since Sunshine Malibu Johnny he already wears his blue swimming trunks to go swimming in some water place, in some not used suit to go swimming. (on the same episode it reveals that Dukey made a whale fall in love with her because once he saved her life by pushing her back in the water).
  • He holds the world record for "eating the most BBQ rocks under a specific amount of time" (Johnny's World Record).
  • He is revealed to believe in karma in Phat Johnny.
  • In Johnny Vets Dukey, Dukey is afraid to go to the vet because of the pointy needles, the coffee is cold and the thermometer supposed to go under the tongue.
  • Hugh and Lila found out Dukey could talk in Johnny's New BFF before having their memories erased.
  • As first shown in Johnny Hollywood, Dukey can do a dead-on Gil impression.
  • Susan and Mary programmed a part of his animal instinct for being Chinese (according to him knowing kung-fu and Chinese).
  • Dukey's voice actor from season five onwards, Trevor Devall often receives criticism for his performance because it sounds different from Louis Chirillo.
  • Dukey was an NPC in Fusionfall. He and Johnny were at the Nuclear Power Plant which they thought was a skate park. Interestingly, there were two skateparks in the downtown area of the game, one of which (like the Nuclear Power Plant) was an Infected Zone. He was also a shop vendor.
    • Unfortunately, due to copyright, Johnny and Dukey will not appear in Fusionfall Legacy.
    • Dukey may have been named after the Green Day album titled "Dookie", due to the writer being a huge Green Day fan.

Dukey's Quotes

"Didn't see that coming."

"Say what?"

"Okay, we can FREAK OUT NOW!"

"Karma always gets you."


"What's more important is staying alive."

"I'm about to freak. AAAAAAAAAAAAH!"

"You never listen to me!"


"I'm Patience for bit silent dog, Johnny"