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This villain was proposed but was rejected by the community for not being heinous enough or lacks what is necessary to be a Pure Evil villain. Therefore, this villain shall be added to our "Never Again List", where proposed villains rejected by the community shall be placed to prevent future proposals of the same evil-doer. They can be proposed again (with the permission of an administrator) if new elements appear in their series that can change their status as non-PE villains.

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If you love clowns, then this is the place to be! You're gonna die laughing! That's a Zombozo guarantee!
~ Zombozo to his audience.

Herbert J. Zomboni, better known as Zombozo, is a recurring antagonist in the Ben 10 series. A psychic vampire, he poses as a major threat to Ben Tennyson, due to his fear of clowns.

Despite being a minor antagonist in the original show, Zombozo played a key role by introducing the Circus Freak Trio, who later became recurring villains. His episode was also the first one to hint the existence of Ghostfreak's true form, possibly anticipating the Zs'Skayr storyline.

He was voiced by John Kassir (the voice actor of the Crypt-Keeper) and John DiMaggio (the voice actor of Joker, Jekhide, Dr. Drakken, Hannibal McFist, Bender, and Brother Blood).



Long before the events of the series, Zombozo was a man named Herbert J Zombini who worked in a school caffetteria. He developed a hatred of children, who mistreated him. At some point, he was bitten by a zombie and then left for dead. However, he didn't die and was ultimately rescued by a circus, presumably the same one which hosted his shows in his first appearance. However, the damage was already done and Zombozo became a half-zombie mutant. He now had the need to feed on emotions of fear and happiness in order to prevent himself from weaknening. However, by feeding on enough emotion, he could gain supernatural powers. After becoming ringmaster of the circus, he replaced the former performers with the Circus Freak Trio, three mutant humans with freakish powers, and repurposed the circus to steal money and other valuables while also allowing him to feed on happiness by making his audience laugh. He would perform for audiences while allowing the trio to steal while everyone was inside watching the show.

Ben 10

In the episode "Last Laugh", Zombozo uses his shows to use his "Psyclown", which robs the unlucky person of their joy and life energy for the clown to eat. While this is happening, his minions rob people in the town. Although not majorly powerful, he posts a mental threat for Ben, due to his coulrophobia. However, Ben manages to steel his nerves after seeing his family in danger, and uses Ghostfreak to make the clown explode. He is not seen again for the remainder of the series.

Ben 10: Ultimate Alien

Zombozo makes his long awaited return in the episode "Hit 'Em Where They Live". After Ben's identity is revealed, Zombozo decides to attack him with several of his other foes, such as Sevenseven, Charmcaster, and Vulkanus. After forming a team with the later two, he uses a captive Sandra as a trap, bringing them to his lair to attack them. He tries to kill Sandra in a torturous way, but this fails as Gwen becomes furious at the site of her pain, transforms into her Anodite form, and yells at the clown to leave both the Tennyson's and Kevin Levin familys's alone. After this, she lets him live to tell any other villain the same thing.

Ben 10: Omniverse

Making his first appearance in "The More Things Change: Part 1", Zombozo first steals a brain from the "Brain Bank". However, he is stopped by Lodestar, beaten, and is taken away.

Next, he appears in "Special Delivery", where he is seen in Psyphon's auction. Once Psyphon notes the Dwarf Star is missing, he goes with Fistrick and Trumbipulor to find it. However, he is beaten by Armodrillo, and after he teams up with Psyphon to stop Ben, Humungousaur.

He makes a final appearance in the episode "Something Zombozo This Way Comes", where he escapes from Plumber Headquarters by putting a costume of himself over Jerry and putting him in his cell to fool everyone. Bringing back his lackies, he and his goon feeds on people's fear, turning them into zombies. Zombozo regains his power due to Ben's remaining fear, but destroyed the machine after seeing Toepick, who he fears. He then escapes using a cannon.


Cunning, manipulative, sadistic, and cruel, Zombozo is a vile man who enjoys gallows humor, and using Ben's fear for his own gain. In Ben 10: Ultimate Alien, he is more psychopatic, using weapons to torture Sandra to death and possibly burying someone alive, as he mysteriously carries a shovel in one scene.

Zombozo never or rarely attacks alone, always gathering together a crew to do his dirty work for him. Originally, this was his Circus Freak Trio and later Zombozo leads a coalition between Vulkanus, Charmcaster and Sevenseven (and eight others who were all warded off by Max before he was injured fending off Sevenseven).

Powers and Abilities

Often using machines to do his dirty work, Zombozo can also teleport in a puff of smoke or confetti and creating illusions. He also has a set of comedy based weaponry, such as caltrops, acid in a seltzer bottle, streamers made from steel, a extendable arm to grab people, a enhanced joy buzzer, dynamite, and a large hammer. He also has the ability to fly by holding a flying toy airplane.





  • Due his appearance and characteristics, it's likely that Zombozo was based on The Joker, Batman's iconic archenemy. However, Zombozo's obsession with fear seems to more closely resemble those of the Scarecrow, another popular member of Batman's rogue gallery.
  • Ben acts like he doesn't remember Zombozo to hide his own fear of clowns.
  • In Ben 10: Ultimate Alien, Gwen seems to have a grudge against Zombozo, likely due to her almost perishing to his Psyclown. This is a bit odd, however, as due being hypnotized, she may have not be able to remember it, but it's highly possible that Ben or Max told her what she did during her trance.
  • While in the original series Zombozo was already an scary and creepy villain, Zombozo arguably is more depraved and evil in Ben 10: Ultimate Alien, as he displayed a much more sadistic and psychopathic behavior, used lethal weapons and tried to make Ben and the Tennyson family suffer by killing Sandra, slowly and scarily. It's even suggested at the beginning of the episode that he has buried someone. Even Charmcaster goes to fear him just like her uncle Hex.
  • Among fans, Zombozo became popular as in his first two appearances (which were the most notable), after being defeated, he simply disappeared without explanation, leading the audience to wonder about whether he had been killed, scared, arrested, etc.


           Ben10Title.png Villains

Main Villains
Vilgax | Aloysius Animo | Hex | Zs'Skayr | Highbreed | Aggregor | Maltruant

The Faction
Khyber | Malware | Dr. Psychobos | Khyber's Panuncian

Charmcaster | Michael Morningstar | Addwaitya

Forever Knights
Forever King | Driscoll | Enoch | Joseph Chadwick | Sir George | Sir Morton | Winston | Forever Ninja

DNAliens | Mizaru | Simian

Negative 10
Rojo | Clancy | Sublimino

Flame Keepers' Circle
Dagon | Conduit Edwards | Esoterica

Circus Freaks
Zombozo | Acid Breath | Frightwig | Thumbskull | Zombie Clowns

Incursean Empire
Milleous | Attea | Raff

Bounty Hunters
Sixsix | Sevenseven | Eighteight | Synthroid | Sunder

Zs'Skayr Allies
Dr. Viktor | Yenaldooshi | Mummy | Crujo | Lord Transyl

Octagon Vreedle | Rhomboid Vreedle | Isosceles Right Triangle Vreedle

The Hive
Elena Validus | Nanochips | Decoy Queen

Psyphon's Gang
Psyphon | Bug-Lite | Bubble Helmet | Liam | Fistrick | Gorvan | Sweet-Eels Sparklefunk | Tummyhead

Proctor Servantis | Phil Billings | Ragnarok | Swift

Captain Nemesis | Kangaroo Kommando | Will Harangue

Future Timelines
Vilgax | Aloysius Animo | Kevin 11,000 | Devlin Levin | Sploot | Subdora| Exo-Skull

Evil Bens
Albedo | Alien X | Bad Ben | Benzarro | Eon | Mad Ben | Nega Ben

S.A.M. | Slix Vigma | Computron | Stalker

Nemetrix Aliens
Buglizard | Crabdozer | Hypnotick | Mucilator | Omnivoracious | Slamworm | Terroranchula | Tyrannopede | Vicetopus

Antitrix Aliens
Bashmouth | Bootleg | Crystalfist | Dark Matter | Hot Shot | Quad Smack | Rush | Skunkmoth | Thornblade | Undertow | Wreakingbolt

Other Villains
Argit | Mr. Beck | Benevelon | Blarney T. Hokestar | Blue Leader | Camille's Ex-Boyfriend | Chronians | Collectimus | Fistina | Great One | Heatbat | Hoodlum | Hulex | Jarett | Jennifer Nocturne | Kevin Levin | Kolar | Captain Kork | Kundo | Lepidopterran Prisoner | Looma Red Wind | Mr. & Mrs. Mann | Morgg | Mutant Reptile Leader | Mutant Seagull | Nyancy Chan | P'andor | Poltroon | Prisoner 775 | Red Leader | Seebik | Skurd | Solid Plugg | Ssserpent | Sunny | Trumbipulor | Violet Offenders | Vulkanus | Vulpimancers | King Xarion Zed |

Vilgax | High Override | Forever Knight | Kevin Levin | Aloysis Animo | Hex | Charmcaster | Ectonurite Prisoner | Opticoid Prisoner | Loboan Prisoner | High Override | Maurice and Sydney | Mutant Alphas | Bug Gang (Queen Bee) | Tim Buktu | Lord Decibel | LaGrange | Steam Smythe | Weatherheads | Xerge | Xingo | King Koil | Alien Chefs | Yawk | Nanny Nightmare | Boblins | Ground Hawg Gang | Fogg | Jack-A-Lope | Hydromander | Ice Screamer | Goblin | Space Slime

Crossover Villains
Alpha | Black Knight | V.V. Argost | Strike