Bling Bling Boy Eugene "Bling-Bling Boy" Hamilton (voiced by Lee Tockar) is a prominent
antagonist of the series and frenemy of Johnny and Dukey, preferring to be called "
Bling-Bling Boy" (because of his gold jewelry and watches). He is egotistic, self centered and only wants Susan Test as his love interest. Even though he is the frenemy of Johnny Test, he does help Johnny out on numerous occasions. However, most characters usually address him by his real name, which annoys him greatly. He is a
multi-billionaire with unlimited funds at his disposal. Bling-Bling Boy is also somewhat powerful among the characters despite having fears of being punished by his mother. He has a big crush on Susan, who doesn't reciprocate his feelings, and often resorts to evil plots or blackmail to win her affection, which always fails, usually courtesy of Johnny. Bling-Bling Boy occasionally teams up with Johnny and Dukey to defeat the other villains when the situation demands it. Similar to Susan and Mary, he often tricks Johnny into testing some of his inventions. Deep down: Bling-Bling Boy is insecure due to being obese and having buck teeth, although in "
Phat Johnny," his weight and buck teeth help him become successful as a hip hop star. Bling-Bling Boy also attended the Mega Institution of Technology, but was kicked out after his thesis ate Professor Slopsink's hand. He later was allowed to return to the Institute in exchange for aiding in preventing a nuclear crisis. In "Johnny X Strikes Back," Bling-Bling Boy gains the power of gold vision and flight. In the 2005 pitch pilot, he was originally named "Golden Boy" and appeared to be designed much younger.
Miss X and Miss Z Miss X and Miss Z (voiced by Brittney Wilson in Season 1, Maryke Hendrikse in Season 2) are two
cyborgs created by Bling-Bling Boy to work at their disposal. They can operate and have a mind of their own when Bling-Bling is not around or in need. Miss X and Miss Z have high intelligence, capable of studying at the Institute Of Porkbelly, and avoid attention. Throughout the seasons, they are more robotic and shown to have more than one pair of them. Miss X and Miss Z only appeared in the first two seasons of the show.
Wacko Wacko (voiced by Colin Murdock) is Johnny Test's second archenemy of the show. Despite being a
toymaker and the head of the toy company Wacko Toys, he deeply loathes kids and makes incredibly destructive toys to rid the world of them. He seems quite intelligent and quite wealthy despite the bad publicity he brings to his company. Wacko would come up with plans to get rid of kids which often annoys his employees who constantly remain loyal to him. He is the leader of the Johnny Stopping Evil Force 5 where he formed its first incarnation with Brain Freezer, Beekeeper, Mr. Mittens, and Mr. Mittens' butler Albert with King Zizrar being part of the second incarnation when Beekeeper turns good. Wacko is obsessed with destroying Johnny and the Tests at almost every chance he gets, due to Johnny foiling his plans in the past, making him go mentally insane. He is so obsessed with Johnny, he'll carelessly risk his own safety or other people just to gain an advantage over The Tests. Wacko is later revealed to have a twin brother named the Tickler. He is somewhat similar to
Toyman and his name is a spoof of
Wham-O, a real-life toy company, and Wacko, fittingly, means "a crazy person."
Brain Freezer Brain Freezer (voiced by Bill Mondy) is the former coffee guy of P.I.T. He is a self-proclaimed genius with his inventions typically involving both coffee and ice. Brain Freezer has a "Chillachino Machine" that can freeze anything including creating armor made of ice. It appears that Brain Freezer is immune to the blasts from his freeze gun as he uses them to transform into his supervillain form by blasting himself, but his "Chillachino" will still freeze him solid if he drinks it. In one episode, the reason for Brain Freezer's villainy is that he's just lonely and that girls constantly reject him (which he responds with insanity/madness and hatred) leading his character to be a sympathetic villain. He is a parody of
Arnold Schwarzenegger's portrayal of
Mr. Freeze from
Batman & Robin due his frequent use of ice puns.
The Beekeeper The Beekeeper (voiced by James Arnold Taylor) is a man in a
beekeeper's suit that can control
bees. His secret identity is Doc Beebles, maker of Piles 'O Honey Bars (parody of
Bit-O-Honey candy). His debut plot was to use his bees to eat all other candy in the world so his Piles 'O Honey Bars would finally sell (nobody bought his bars because they were naturally sweet and healthy), though Doc really wanted the kids to be healthier. After his first defeat, Beekeeper joined the Johnny Stopping Evil Force 5. He does later help out the Test siblings and Dukey saves a candy holiday that they created by giving his Piles 'O Honey Bars to every child in the world. Due to this, Beekeeper is currently reformed and likes the Tests leading him to be replaced by King Zizrar on the Johnny Stopping Evil Force 5. Beekeeper loves saying "bee" as "be" as a pun when he's wearing his beekeeper suit.
Mr. Mittens Mr. Mittens (voiced by James Arnold Taylor) is an evil cat who was enhanced with the same modified genetic structure as Dukey by his owner Tim Burnout. It was mentioned that Tim was a terrible owner to Mr. Mittens due to the fact that Tim never cleans out his litter box. He very commonly tries to turn the entire world into cats in his evil plans like he did in his first appearance or he plans to have revenge on Johnny and Dukey eventually becoming one of his arch-enemies. In one episode, Mr. Mittens claims to want revenge on Johnny when in reality, he's just lonely like Brain Freezer. Like Dukey, he is highly intelligent but seems to lack Dukey's fighting skills and luck. Mr. Mittens also loves to cheat in competitions which usually backfires with instant karma. A running gag of his is that he coughs up hairballs at specific moments.
Albert Albert (voiced by Lee Tockar) is Mr. Mittens' aforementioned
butler who used to serve Mr. Mittens' owner Tim Burnout. Albert isn't seen hating Johnny, but he was forced into the squad because he has to take care of Mr. Mittens all the time (it is debated if he's a villain or he's just doing his job). He is quite calm and down to earth. Albert has shown that he can't be tickled, even by the best machines (in fact, he broke and overloaded a machine in the process of being tickled) at the time when Johnny Test faced off against Wacko's twin brother the Tickler. He has also shown to have matching intelligence as his master. A running gag is that when Mr. Mittens coughs up hairballs at specific moments, Albert would clean it up. He is a parody of
Alfred Pennyworth from the
Batman franchise.
King Zizrar King Zizrar (voiced by Scott McNeil) is the ruler of the
mole people who on a few occasions attempted to take over the world or invade the surface only to fail due to his intense
aversion to light. He's charismatic and a good tactician, but can be a pushover at times and a coward when the odds don't work in his favor. King Zizrar is the first villain Johnny ever fought, though is among the least-recurring villains. After the Beekeeper reformed from the Johnny-Stopping Evil Force Five, King Zizrar took his place. While earliers King Zizrar was very small and short in season 1, being about half Johnny's size, later seasons had him much bigger and taller, being roughly the same height as Johnny.
Dark Vegan Dark Vegan (voiced by James Arnold Taylor) is the alien ruler of Vegandon, a seemingly utopian planet composed completely of the Vegans, humanoids who at first appear peaceful and well-meaning, but in reality, they go to other planets and sap them of their resources which is what he tried to do to Earth on two occasions and nearly succeeded. After his second attack on Earth, he and his family were left stranded on Earth, much to the ire of Vegan and the pleasure of his family. Although Johnny eventually helped him to return to Vegandon, he later returned to Earth and became a regular resident after discovering his planet was incapable of producing his new favorite food:
toast. Dark Vegan has a mind-control power that works only on dumb people. He is Jillian's father and is very overprotective of her (he threatens the Earth/Johnny with destruction if his daughter isn't satisfied or if it doesn't meet his standards). Later in the series, Dark Vegan appears as a wildcard of The Tests (he constantly changes from ally to enemy, especially to Johnny). He is a composite parody of
Darth Vader from
Star Wars and Dark Helmet from
Spaceballs due to having the latter's retractable face covering on his helmet and the formers voice-deepening effect.
Minor villains The following are minor villains that Johnny went up against: •
The Caveman: Appeared in the episode "Stinkin Johnny", the Caveman is a towering
caveman-themed wrestler. Johnny wants to enter a wrestling competition so that he can win a new HDTV. Before wrestling, Susan and Mary make a costume for Johnny which allows him to spray gas out of his costume. Before Johnny beats The Caveman at the competition, Johnny sprays gas at Bumper, three evil dogs, and his dad. First, The Caveman defeated a wrestler named Brack-Breaker when he threw him out of the cage defeated. When Johnny was about to spray The Caveman with his costume, he realized that he ran out of perfume after spending it on the wrestlers in line and gets chased by The Caveman. Johnny gets kidnapped by the Caveman, and Dukey, Susan, and Mary try to rescue Johnny but they get kicked out. Johnny's dad shows up but he gets thrown out as well. When Johnny was about to be beaten up by the Caveman, his mom appears to save him. After Lila beats the Caveman, she saves Johnny and wins $10,000. In the end, Johnny and Dukey both get grounded from TV, and Susan and Mary both get grounded from the lab. •
Blast Ketchup (voiced by Kathleen Barr): The main character of the Tiny'Mon games, Blast Ketchup has dreams of becoming the World's Greatest Tiny'Mon Master. Ever since Johnny was trapped in their world and Blast was defeated by Johnny, it became his goal to defeat Johnny in Tiny'Mon to become the Tiny'Mon champion he self-proclaims deserves. It is easy for him to detect tricks and is not under using dirty tactics to win such as kidnapping. He always takes the first words of what people say, mistaking them as Tiny'Mon. He is a parody of
Ash Ketchum from the
Pokémon series. •
Ed: Blast Ketchup's friend and cheerleader. He's always considered everyone as a loser, despite showing a lack of social skills and experience in Tiny'Mon. •
Screechereen: Evolved from the almost completely weak Cuddlebuns. She is a legendary Tiny'mon that many believed didn't exist and is incredibly strong. In ''Return of Johnny'mon'', she is brought up as female. She resembles
Lugia from the
Pokémon series. •
Cuddlebuns: A cute but weak Tiny'mon. In fact, it is the weakest Tiny'mon ever. In ''Johnny'mon'', it is revealed that it can evolve into Screechereen when given love. •
Baboomerang and Badias: Blast Ketchup's Tiny'Mons. Baboomerang (formerly Kadoomerang) is listed with 1000 Power Point's, while Badias has 1100. Baboomerang appeared as an anthropomorphic baboon. He wore armor, a belt, and a diaper. Badias appeared like Screechereen but in black. •
Claire Nefarius (voiced by Kathleen Barr): A character who appeared in the episode "The Quantum of Johnny". She is the daughter of Larius Nefarius. In the episode, she had a birthday party and hid to launch missiles into her father's factory (which was nearby) to get her dad to spend more time with her. Johnny constantly mentions that she is hot. At the end of the episode, Larius Nefarius learned of his mistake and promised to spend more time with her and act like a father. He started by forbidding her from dating Johnny because she is too young. •
Warty (voiced by James Arnold Taylor): Johnny's talking
wart who appeared in the episode "Johnny's Got a Wart!". He started as a regular wart until he was brought to life. Although Johnny was unsure how he obtained a wart on his left wrist. Worried, Dukey took him to the Lab, hoping Susan and Mary get rid of it. They shot it with a "laser", though it failed. Later at school, the wart came to life and became helpful to Johnny: he helped him remember his locker combination, got him an "A" in math, confronted Bumper by revealing his inner soft side, and got Johnny an invite to a party with cheerleaders. After school, Warty grew eyes that Johnny thought was creepy. Warty became evil and took over Johnny's body (by controlling his brain and nerves) and then the world though was stalled since he struggled to control Johnny and couldn't do so until he had complete control of Johnny's brain. •
The Tickler (voiced by Colin Murdock): The Tickler is Wacko's twin brother. He has red hair and mechanical arms that he uses to tickle people who threaten him into submission. At one point, Johnny thought he was Wacko until the Tickler corrected him. Unlike his brother, he was more evil and serious and was able to weaken Johnny's chances of defeating him by kidnapping Susan and Mary and taking their weapons so Johnny and Dukey couldn't fight back. However, they succeeded in defeating the Tickler after receiving help from Zizrar (who advises them to use the element of surprise), Dark Vegan (who lends Johnny and Dukey helmets to deepen their voices so they sound more intimidating), Mr. Mittens (who tells Johnny to use amusing and well-fitting catchphrases), and Albert (who is the only one who is not ticklish). ==Other characters==