Ben 10 Fan Fiction Wiki
Ben 10 Fan Fiction Wiki
Kirk Upchuck
General Information
Species Gourmand
Home Planet Peptos XII
DNA Source Kirk
Body Humanoid Toad
Abilities Solid Matter Ingestion
Explosive Vomit
Acid Spit
Slime Spit
Strong Prehensile Tongues
Strong Teeth
Flight (via Propulsion)
Swarm Gastronomy
Space Survivability
Enhanced Flexibility
Enhanced Speed
Enhanced Durability
Enhanced Agility
Sharp Claws
First Appearance Someone They Ate
Voice Actor Dee Bradley Baker
Status Unlocked

Kirk Upcuck is the Ultimatrix MK10's DNA sample of a Kirk Gourmand from the planet Peptos XII.


Ben as Kirk Upchuck

Kirk Upchuck has grey skin, six sprout-like growths on the back of his head, a dark-grey patch of skin on his head, light-grey skin on his face and belly and a buck-teeth overbite. He has whisker like lines on his face. He also has a grey tail.

In A Future Enemy, he, along with the other Upchucks, gain a green suit similar to Upchuck in the original series. The Ultimatrix MK10 is on his chest.

Powers and Abilities

Kirk Upchuck has four very strong, adhesive tongues that can stretch to great lengths, allowing him to latch onto large objects and reel them in with relative ease.

Kirk Upchuck's mouth can stretch, allowing him to swallow objects larger than himself. He is connected with a trans-space bladder dimension where he stores all the "food" he eats. He is both connected to the gourmand species and sense any danger to his people through his stomach.

By breathing air out of his mouth, Kirk Upchuck is able to fly.

The items ingested are converted into explosive balls of liquids that can be expelled with great accuracy. Kirk Upchuck can also make them curve, like a boomerang, shuriken, or frisbee.

Kirk Upchuck is able to take a surprising amount of punishment for a creature of its size, taking the force of a moving car impact as well as surviving after being thrown through a wall.

Kirk Upchuck can eat and spit out energy, such as lasers, in the same way he eats and spits out acid matter.

Kirk Upchuck can spit out slime like Murk Upchuck. Perk Upchuck hasn't displayed this.

Kirk Upchuck iss capable of eating Alpha's containment ball, demonstrating to have very strong and durable tongues, as the ball weighed an immeasurable amount.

Kirk Upchuck, unlike the other Upchucks, has sharp claws that can slice through steel. He is also capable of rolling into a ball.


Kirk Upchuck has a limit to how many big objects he can swallow at once.

Kirk Upchuck is slow when he eats a lot of things and become excessively fat. Otherwise, he is somewhat quick, considering his small size.

If Kirk Upchuck does not spit out something he eats, he will get very fat and rendered immobile until he spits it out.

Kirk Upchuck cannot swallow Ultimate Albedo's energy beams.


  • Kirk Upchuck debuts in Someone They Ate, where he fights Infern.
  • In 10+10, Kirk Upchuck chases Bubble Helmet and falls through a portal.
  • In A Tale of Two Frogs, Kirk Upchuck tries to fight Emperor Milleous, but times out.
  • In A Future Enemy, Kirk Upchuck fights Project Famigilia and wins.



  • Credits to Dio for the second infobox image and CaT for the background removal.
The New Omniverse
Waybig (Creator) - Creeper - Jose - Sen - Dio - Rex - Omniverse9


Ben Tennyson - Gwen Tennyson - Kevin Levin - Rook Blonko <tabber>Minor= Ben Tennyson (Dimension 23) - Benjamin Tennyson (Dimension 01) - Nega Ben - Professor Paradox - Bad Ben - Jen Tennyson - Ben Tennyson (Dimension 7) - Argit - Eon - Sugilite - Albedo (Dimension X) - Gwen Tennyson (Gwen 10 Timeline) - Ben Tennyson (Ben 10,000) - Ben 10,000 (Alternate Future) - Kai Green - Ken Tennyson - Gwendolyn Tennyson - Kai Carson -


Arctiguana - Big Chill - Cannonbolt - Ultimate Ditto - Echo Echo - Gravattack - Humungousaur - Jetray - Spidermonkey - Swampfire - Upgrade - Way Big - Wildmutt

Airhead - Cooldown - Electricyeti - Freezelizard - Muck Amuck - Short-Start - Speedyquick - Vomit Man


Infern - Jeff - Dr. Psychobos - Psyphon - Project Famigilia - Eon <tabber>Minor=Ben X - Vilgaxzarro - Vilgax - Sunder - Zombozo (Thumbskull - Frightwig - Acid Breath)

Geniosapien - Vyroid