It’s hero time!
Ben Tennyson

Ben Tennyson (Omniverse)

11 year old Ben Tennyson

Ben Tennyson (Destroy All Aliens)


Ben Tennyson (Alien Force)

Ben Tennyson (Original Series)

Eatle statistics
Species Human
Homeworld Earth
Voice Tara Strong (Original Series)

Yuri Lowenthal (Alien Force, Ultimate Alien, Omniverse)
Tara Strong (4, 5, 10 and 11 years old) Yuri Lowenthal (15 and 16 years old)
Graham Phillips (Race Against Time)
Ryan Kelley (Alien Swarm)

Series of Origin Ben 10
Debut And Then There Were 10

Benjamin Kirby "Ben" Tennyson is the main protagonist in the Ben 10 franchise.


Appearance Edit

Ben's physical appearance has changed throughout the series from a ten-year-old to a sixteen-year-old. However, he retains some recurring characteristics. He has shaggy brown hair, green eyes, pale skin, and he's quite skinny for his age, though he shows a lot of muscle definition due to being athletic.

When he was 5, as revealed in a flashback of how he first met his future frenemy Mr. Baumann, Ben wore green overalls with a white shirt underneath it. White numbers saying "5 1/2" were on a black square in front of his overalls.

In the original series and Omniverse flashbacks, Ben's usual clothes consisted of a black-striped, white shirt with short sleeves, military green cargo pants and black and white sneakers with black stripes. Ben wore the prototype Omnitrix on his left wrist.

In Alien Force and Ultimate Alien, Ben wore a black shirt, blue pants and a green jacket with white stripes and the number 10 on it, and black and white shoes. Ben wore the prototype Omnitrix in Alien Force and the Ultimatrix in Ultimate Alien on his left wrist.

In Omniverse, Ben wears a black shirt that has a green stripe in the middle with a white 10 and green stripes on the sides of his shirt. He wears brown cargo pants with pockets at the knees and green and white shoes. He later gains a white hooded jacket with green stripes on both arms and a green number 10 on the right side. He wears the Omnitrix on his left wrist.

In Omniverse, while riding the Tenn-Speed, he wears a white helmet with the number 10 on it, a green visor, a short-sleeved black T-shirt, long white pants and a belt with the number 10 on it.

Occasional Appearances Edit

In The Unnaturals, he wore a blue baseball shirt with the letter "C" at the front and number 23 at the back, white shorts, blue and yellow socks, blue and white shoes, and a blue baseball helmet. Before the baseball game and after he battled the Squires and Coach Finn, he wore a blue and yellow baseball hat with the letter "C" in the middle.

During water-based activities, he wore a blue swimsuit in The Krakken and A Small Problem and a red and yellow swimsuit in Divided We Standand Big Fat Alien Wedding.

In Alien Force and Ultimate Alien, Ben wore a black shirt, blue pants and a green jacket with white stripes and the number 10 on it, and black and white Converse-style shoes. Ben wore the prototype Omnitrix in Alien Force and the Ultimatrix in Ultimate Alien on his left wrist.

In What Are Little Girls Made Of? and In Charm's Way, he wore green trunks.

In Ultimate Alien, he wore a standard Plumber suit during a few of his off-world excursions.

In Basic Training, while at the barracks in the Plumbers' Academy, he wore an olive tank top and black shorts.

In Inspector 13, he wore a green T-shirt and black shorts.

In Omniverse, Ben wears a black shirt that has a green stripe in the middle with a white 10 and green stripes on the sides of his shirt. He wears brown cargo pants with pockets at the knees and green and white shoes. He later gains a white hooded jacket with green stripes on both arms and a green number 10 on the right side. He wears the Omnitrix on his left wrist.

Ben_4_years_old.png 4 year old Ben in Don't Drink the Water

Special1.png 5 year old Ben in Omniverse

Ben_OS_Blue_Swimsuit.png Ben's first swimsuit in the original series

Ben_OS_Baseball.png Ben in The Unnaturals Ben_OS_tuxedo.png Ben wearing a tuxedo in Big Fat Alien Wedding

Ben_OS_Swimsuit_2.png Ben's second swimsuit in the original series Young_Ben_OV_Teen_Clothes.png 11 year old Ben with 16 year old Ben's clothes in Omniverse BenDAA.png 10 year old Ben in Destroy All Aliens

Young_ben_ua_full.png 10 year old Ben in Ultimate Alien

Ben10omni_char_174x252_youngben.png 10/11 year old Ben in Omniverse Ben_AF_Soccer_Clothes.png Ben in his soccer clothes in Alien Force Ben_AF_No_Jacket.png Ben in Alien Force without a jacket Ben_AF_Swimsuit.png Ben's swimsuit in Alien Force

Ben_Tennyson_in_Alien_Swarm_motorcycle.png Ben in Alien Swarm Ben_UA_Sleeping_Clothes.png Ben in his sleeping clothes in Ultimate Alien Ben_UA_Plumber_Suit.png

Ben in a Plumber suit in Ultimate Alien

Ben_Basic_Training.png Ben in Basic Training

Inspector_13_Ben.png Ben in Inspector 13

Ben10_Profile.png 16 year old Ben in Heroes United Ben_HU_No_Jacket.png 16 year old Ben in Heroes United without a jacket Ben_HU_Rex_Jacket.png 16 year old Ben in Heroes United with Rex's jacket Young_Ben_HU.png 10 year old Ben in Heroes United OmniverseBen15.png 16 year old Ben in an Omniverse flashback

DepreyPresa1P284u.png 16 year old Ben in Omniverse, with the white jacket

Personality Edit

Initially cocky, childish and arrogant, Ben's immaturity and attention-seeking behavior often led him to joke around, regardless of the situation. His allies often criticized his attitude, unaware of the fact that he used humor to mask his fears. Despite some childish attitude, he was heroic, caring and generally good-natured, always willing to save others at any time. Over the years, Ben has displayed good leadership skills, as well as the ability to adapt his attitude to a situation, becoming serious when it's called for. He became more mature, responsible and sensible. He's kind-hearted, willing to sacrifice even his own life for others. His idealistic views and unwillingness to compromise his values – aspects condemned by Azmuth, yet commended by others – sometimes drive him to act against reason, such as helping his enemies if they need it (most remarkably Vilgax). Professor Paradox has praised Ben's good nature, going so far as to say he had the gift to make the right choices at the right moments.

However, when Ben fails to save someone, or if someone gets hurt because of his failures, he becomes angry and much more violent. Perhaps the most notable of these instances is when Kevin willingly mutated himself to succeed where Ben had failed and stop Aggregor, Ben was set on killing Kevin, even fighting Gwen when she refused to help him. He also threatened to hunt down and destroy the Forever Knights once[1] making Driscoll promise to cease the hunting of aliens.

Though often stated to be silly or unintelligent because of his immaturity, Ben is cunning and resourceful when needed, quickly adapting when the Omnitrix doesn't provide him with the alien he wanted.

Later on, Ben starts thinking of himself as more of a superhero than a Plumber, often remarking that he's not a cop, but a superhero. Although he once again became cocky, he retained his selfless and heroic nature.

History Edit

Ben 10 Edit

Main article: Ben Tennyson/Classic/Ben 10

Five years prior to Omniverse Edit

Main article: Ben Tennyson/Classic/Five years prior to Omniverse

Alien Force Edit

Main article: Ben Tennyson/Classic/Alien Force

Ultimate Alien Edit

Main article: Ben Tennyson/Classic/Ultimate Alien

Omniverse Edit

Main article: Ben Tennyson/Classic/Omniverse

Powers and Abilities Edit

Ben has been trained in hand-to-hand combat by black belt Gwen, Max, as well as various years fighting aliens, and received a basic Plumber training. He proved to be quite skilled in basic hand-to-hand combat as well armed and unarmed combat, being able to easily dodge shots from Manny's blasters and proceed to disarm him while in human form.[2] Ben was able to hold his own against Pierce, and Max hinted that Ben was a highly skilled fighter, even as a human.[3] Another hint of his exceptional hand-to-hand skill is when he succeeded in the Plumbers' Academy with a 95 out of a 100. He is also a crafty fighter and actually uses freestyle fighting.

It's evident that Ben is smart in some respects, possessing an above average intelligence. It was even stated by Gwen that he really isn't working up to his potential at school. He also has fairly moderate grades. Physics and Chemistry are his toughest subjects, yet he still maintains a B+ average.

Ben has a good memory, as he was perfectly capable of remembering and writing down the mystic rune-like symbols for entering the inter-dimensional realm of Ledgerdomain with just one glance from a distance.[4]

Ben is also a cross dominant, skillfully wielding tools and weapons in either hand, in human or alien form.

Equipment Edit


Ben transforming into Four Arms

Ben is the wielder of the Omnitrix (formerly the Ultimatrix and first Omnitrix), which gave him the power to modify his own genetic code in order to turn into various alien creatures. Traditionally, he could only transform into ten aliens at the beginning of both the original series and Alien Force, but he later gains additional forms by either unlocking them or by scanning the DNA of aliens he meets. 

When transforming into an alien, Ben gets all the creature's features, including its appearance, voice, all of its unique and special abilities and powers, strengths and weaknesses. Though he mostly retains his personality, there are some cases where the transformation causes a change in it, like with Rath and Jury Rigg. 

Though he usually uses his alien forms to fight, he can impersonate aliens as he did with Water Hazard to convince P'andor to go home, and though he was unsuccessful at convincing him, P'andor believed him to be Bivalvan.  

In addition to transforming into aliens, the Ultimatrix included what is referred as an "evolutionary function", that allowed Ben to evolve his alien forms in order to get upgraded versions of them, referred to as Ultimate Forms. 

In addition to the primary transformations and evolutionary function, the Omnitrixes and Ultimatrix can both be used for various purposes. Both have a built-in Universal Translator that allows Ben to communicate with most aliens that don't speak English.

The prototype Omnitrix displayed the ability to manipulate and repair genetic damage, a function he used to cure DNAliens and save the Highbreed from extinction. Azmuth also mentioned that Ben could use the prototype Omnitrix to bring back to life any species stored on Primus.

The Omnitrix also has a failsafe to help prevent Ben from dying. If Ben is in mortal danger and the Omnitrix is in recharge mode, it will automatically go into active mode.

Weaknesses Edit

Whenever the Omnitrix times out, Ben is left powerless until he either dodges or switches to a new alien form. In addition to gaining the selected alien's powers and strengths, he gains its weaknesses. Additionally, at times the natural biological behavior of certain aliens can override Ben's behavior, such as Big Chill's reproductive phase or Swampfire's blossoming process. Furthermore, any illness Ben is experiencing in his human form will also affect his alien forms.

Whenever Ben unlocks a new alien form, he is at a disadvantage of not knowing its abilities and weaknesses until he gains experience with using the new alien.

Despite his experience in using the Omnitrixes and Ultimatrix, Ben still does not know every function of them. Due to his inquisitive nature and impatience, he has accidentally unlocked new functions such as the Master Control and the randomizer, which can at times do more harm than good.

Though the current Omnitrix is designed to work only for him, Ben still has not mastered it. According to Azmuth, Ben may get the Master Control on his 18th birthday.

The Omnitrix does not actually mistransform, but rather it is due to Ben hitting the Omnitrix too hard, thereby causing the time-out function to select another alien at random.[5]5_year_old_ben_is_fear_of_clowns%281%29.png

Ben's fear of clowns

Ben has an allergy to peanuts and has a fear of peacocks. He also has coulrophobia, the fear of clowns. 

Ben's left eye twitches whenever he tells a lie, but only Kevin appears to notice this. 

Ben appears to have a short attention span at times, and more often than not it can get him into trouble. 

Though he has matured substantially since receiving the original Omnitrix, he is still a teenager with much to learn and is prone to irrational impulses and recklessness. 

Appearances Edit

Episodes Edit

Ben has been in every episode, movie and short except of the what if episodes, Gwen 10Goodbye and Good Riddance and Ben 10: Race Against Time, which feature Ben from alternate timelines. Here's a list of all his appearances throughout the series.

  • Ben 10/Episodes
  • Ben 10: Alien Force/Episodes
  • Ben 10: Ultimate Alien/Episodes
  • Ben 10: Omniverse/Episodes


15 year old Ben in Alien Swarm

Comic Books Edit

Ben has appeared in every comic book, except for Old Friends and It's a Set Up.

Video Games Edit

Ben appears in every Ben 10 video game. Ben is also seen in the crossover video game Punch Time Explosion and Explosion XL.

Ben 10: Protector of Earth Edit

BenPoE.png While Ben is sleeping at the Grand Canyon, Vilgax extracts DNA of the Omnitrix. Ben travels around the United States to retrieve all parts of the Omnitrix.

Ben starts with Heatblast and Four Arms. But later obtains XLR8, Cannonbolt, Wildvine, and Perk Upchuck (DS if player cheats). Later, he unlocks the Master Control.

Ben 10 Ultimate Alien: Cosmic Destruction Ben_in_Cosmic_Destruction.png Edit

Ben confronts a new villain, Evil Way Big. To defeat him, Ben looks for parts of the Potis Altiare's located in places around the world. In The Final Battle with Evil Way Big, Ben puts the Potis Altiare together and uses it as Way Big. Later during the Battle, Way Big uses a very powerful cosmic ray and sends Evil Way Big to space.

Ben uses the Ultimatrix, but has access one group of aliens: See Here

Punch Time Explosion and XL Edit

Punch Time Explosion Edit

Ben hunts down Vilgax, the latter conquers Chowder's Universe. Ben later teams up with other cartoon network characters to hunt down Vilgax throughout other universes. He is the first usable character.


  • Swampfire (standard attack) 
  • Big Chill (up/extra jump attack) 
  • AmpFibian (down attack) 
  • Humungousaur (side attack) 
  • Ultimate Humungousaur (Punch Time Explosion)
Punch Time Explosion XL Edit

In this game, nothing is much different in the storyline. However, young Ben Tennyson is available as a playable character, even though he does not appear in the storyline. Young Ben doesn't appear in the storyline but is also playable. He costs 1500, which is more than the average character, making him rarer.

  • Heatblast (up/extra jump attack) 
  • XLR8 (side attack) 
  • Cannonbolt (down attack) 
  • Wildvine (standard attack) 
  • Four Arms (Punch Time Explosion)

Cartoon Network Online Games Edit

  • FusionFall (NPC) 
  • Project Exonaut (NPC) 
  • Formula Cartoon (NPC) (Young Ben) 
  • TKO (only in alien forms)

In Other Media Edit

MAD Edit

Ben appeared briefly in a snippet of the new Cartoon Network show, Mad. They were doing a Star Trek parody and the crew was watching Ben 10 on their screen.

Then, they did another parody, but this time with Benjamin Franklin.

They later did a Cowboys and Aliens parody. In Cowboys and Alien Force, Jedediah Benjamin Tennyson wakes up on the left side of Jake Lonergan saying he has no pants and gets punched by Jake. A cowboy said that Jake was wearing Ben's pants, his hat, and his Omnitrix. Jake presses the Omnitrix, turning into an alien similar to Diamondhead or Chromastone and he crushed the cowboy with its hand. The Omnitrix in this episode is more like a square and does not have the black and green color sequence.

South Park Edit

In the South Park episode "You're Getting Old," Cartman's Mom mentioned that Cartman gets upset when he doesn't get a present every time someone else gets a present at a party. One of the presents Cartman gets is a "Ben 10 Wrist Rocket." 

Robot Chicken Edit

Ben made an appearance in the fifth episode of the sixth season of Robot Chicken, Hurtled from a Helicopter into a Speeding Train, where Ben is just turning 14. 

Uncle Grandpa Edit

Ben, among other Cartoon Network characters, made a cameo watching an awards show hosted by Uncle Grandpa. Omniverse Ben, who did not speak, was annoyed by a lame joke that Uncle Grandpa made.

Relationships Edit

Main article: Ben Tennyson/Classic/Relationships

Etymology Edit

Benjamin is a name from the Hebrew name בִּנְיָמִין (Binyamin) which means "son of the south" or "son of the right hand" going back into the Tanakh (called the Hebrew Bible by Christian scholars), a name of one of the sons of Jacob. His name, "Ben," is to create a rhyming effect between his first name and the number Ten. Also, his surname is a reference to 'Ten' of Ben 10. 

His middle name, Kirby, was named as reference to comic book artist Jack Kirby.[6]

Trivia Edit

  • According to Azmuth and Professor Paradox, Ben will have a glorious future. 
  • According to Azmuth and Sir George, Ben is the same as they were when they were young. 
  • According to Natalie Tennyson, Ben does not have good table manners. 
  • When Ben was 10, he used to sleep with his teddy bear, called "Furry Freddy."[7] However, Ben defended himself saying that Furry Freddy had his own bed, which happened to be right next to his.[8]
  • Ben's history now has to be read at the Plumbers' Academy. It comprises approximately a "chapter and a half."[9]
  • Gwen's birthday is in December[9], which would put Ben's in December too, as they both share the same birthday.[10]
  • According to himself, 
    • He used to shout the names of his aliens to strike fear into his opponents. 
    • His worst subject is Physics. 
    • He passed the 3rd grade by choosing C for all the answers on multiple choice tests. 
    • His favorite color is green. 
    • His favorite food is Chili Fries. 
    • His favorite hobby is collecting Sumo Slammers. 
    • His worst fear is peacocks. 
    • His first crush was Patty Berkinfield from 3rd grade. 
    • He has a scar on his body in the shape of New Jersey. 
  • Ben has a habit of referring to other members of his aliens' species by the names he gives his aliens (A good example being that he calls VaxasauriansHumungousaurs). 
  • Ben has obtained an honorary college degree from Friedkin University. It's a doctorate.[11]
  • Ben can play guitar and also snowboard.[12]

References Edit

  1. ↑ The Purge
  2. ↑ Above and Beyond
  3. ↑ Voided
  4. ↑ Where the Magic Happens
  5. ↑ For a Few Brains More
  6. ↑ Derrick J. Wyatt
  7. ↑ Gwen Tennyson
  8. ↑ A Change of Face
  9. ↑ 9.09.1Rook Blonko
  10. ↑ The Ultimate Heist
  11. ↑ Mystery, Incorporeal
  12. ↑ Monster Weather

See Also Edit

  • Ben Tennyson and Julie Yamamoto
  • Ben Tennyson and Kai Green
  • Ben's Team
  • DX Mark 10
  • Tenn-Speed
  • Ultimatrix
  • Omnitrix

Characters Tennyson Family Ben Tennyson • Gwen Tennyson • Max Tennyson • Carl Tennyson • Sandra Tennyson • Frank Tennyson • Natalie Tennyson • Kenneth Tennyson • Gordon Tennyson • Betty Jean Tennyson • Joel Tennyson • Camille Mann-Tennyson • Vera Tennyson • Clyde Fife • Ben's Dog • Big Chill's Offspring • Verdona Levin Family Kevin Levin • Mrs. Levin • Devin Levin • Zed • Harvey Hackett Rook Family Rook Blonko • Rook Da • Rook Bralla • Rook Shar • Rook Shim • Rook Shi • Rook Ben Plumbers Magister Patelliday • Magister Arnux • Magister Pyke • Magister Hulka • Magister Coronach Hobble • Molly Gunther • Brannigan • Zorian Alan Albright • Helen Wheels • Manny Armstrong • Cooper Daniels • Lucy Mann Bryk • Chortle • Tack • Wat-Senn • Scout • Jerry • I.M. Werfzel • Leadfoot • Morty • Elliot • Bromeba • Stick Doug • Robucket • Fistina • Plen Stroff Magister Labrid • Magister Prior Gilhil • Victor Validus • Pierce Wheels Secondary Characters Cash Murray • Ester • Hex • Ignacius Baumann • J.T. • Jimmy Jones • Julie Yamamoto • Kai Green • Pakmar • Professor Paradox • Rad Dudesman • Reinrassic III • Ship • Skurd • Tetrax Shard Galvan Azmuth • Blukic • Driba • Luhley • Ujin • Teacher • Fergi • Chadzmuth • Y-it • Duffy • Zennith • Retaliator • Soldiers • Major Andromeda Aliens Andreas • Bivalvan • Galapagus • P'andor • Ra'ad Freed Ultimate Versions Sentient Ultimate Big Chill • Sentient Ultimate Cannonbolt • Sentient Ultimate Echo Echo • Sentient Ultimate Humungousaur • Sentient Ultimate Spidermonkey • Sentient Ultimate Swampfire Forever Knights Sir George • Winston • foreverduke838 • Squire Actors Abel North • Cerebrocrustacean Actor • Deefus Veeblepister • Fridge • Gourmand Actor • Gwenettes • Hugh • Jennifer Nocturne • Piscciss Volann Actor • Swamps • Vilgax Actor Atrocians Blue-Worst • Green-Worst • Orange-Worst • Pink-Worst • Purple-Worst • She-Worst • Slim-Worst • Violet-Worst Others Alien Kid • Alton Alabaster • Amazing Alan • Andy • Aniceto • Arnold • Baby Celestialsapien • Bahrvad • Bailiff • Barry • Ben's Teacher • Bezel • Bill Gacks • Billy • Blowfish • Bob • Dr. Borges • Brad • Private Brownbag • Agent Bryson • Caitiff • Carol Smith • Sergeant Cast Iron • Centur Squaar • Chicken Alien • Cicely • Sergeant Cookmeister • Cow Alien • Decka • DJ • Judge Domstol • Donovan GrandSmith • Doug • Dragon • Earl • Ectonurite Twins • Eddie GrandSmith • Edith • Edna • Egor • Elsgood • Elves • Emily • E-N • Eunice • Mr. Fang • Mrs. Fang • Fistina • Fitz • Fritz • Frolic • Gar Red Wind • Gaterboy • Genaro • Gil Steptoe • Gilbert • Gluto • Grick and Grack • General Groff • Haplor • Harold • Hector • Helena Xagliv • Helio • Hervé • Highbreed Councilors • Hotel Guard • Hugo • Ignaceous • Immovable Object • Ishiyama • Jamie • Jeff • Joan Maplewood • Joe • Mrs. Jones • Jonesy • Julius • K8-E • Dr. Kelly • Krakken • Kwarrel • Kyle Monitor • Lackno • Laurence Wainright • Kenko • Lepidopterran Kid • Councilwoman Liang • Lillimusha DiForestini • Lobster Man • Agent Locke • Loovis Slerdlerk • Lu • Lucy • Lukik • Madison • Madison's Father • Mad Harangue • Mad Rook • Malice • Mandy • Margie • Marty • Sheriff Mason • Maureen Nocturne • Mechamorph Guard • Medic • Megawhatts • Mildred • ML-E • ML-E's Mother • Moldywarp • Mother Celestialsapien • Myaxx • N-8 • N-D • Naljian Mother • Natalie Alvarez • Null Void Settlers • Orb • Parts Dealer • Dr. Pervis • Peterson • Pierce's Girlfriend • Porcupine • President • Probity • Pyxi • Quince • Rayona • Roger • Colonel Rozum • Sanctuary Guardians • Screegit • Sentinel • Sheelane • Shelby • Dr. Shueman • Smoothy Vendor • Smuggled Psycholeopterran • Sock Vendor • Spellbinder • Lieutenant Steel • Steve Cummings • Sugilite • Sumo Slammer Collecting Boy • Tack • Technorg • Tentacle Vendor • Tetramand Priest • Thaddeus J. Collins • Thomas Jingles • Tiffany • Tiffin • Tim Dean • Tini • Tiny • Tiny's Father • Tiny's Mother • Toby Monitor • Todd Maplewood • Trina • Trukk • Twotwo • Tyler • Ultimos • Vance Vetteroy • Vexx • Viktoria • Walt • Warrior • Mr. Webb • Officer Wells • Wes Green • Wolf Blitzer • Mr. Yamamoto • Yeti • Zabin • Zaw-Veenull • Mr. Zu Future Ben Tennyson • Gwendolyn Tennyson • Ken Tennyson • Max Tennyson • Rook Blonko • Kai Green • Kevin Levin • Kevin's Spouse • Devlin Levin • Argit • J. Jonah Jones • Ken's Pet Ben 10,000 (Ultimate Alien) RAT Timeline Ben Tennyson • Gwen Tennyson • Max Tennyson • Edward White • Louise Dalton • Mr. Hawkins • Mr. Whittington • Mr. Enguells • Mr. Jenyx • Mrs. Carlay • Constantine Jacobs • Old Man Gwen 10 Universe Gwen Tennyson • Ben Tennyson • Max Tennyson Gwen Tennyson (Omniverse) Dimension 23 Ben Tennyson • Tetrax Shard • Sevenseven • Azmuth No Watch Timeline Ben Tennyson • Max Tennyson Generator Rex Rex Salazar • Rebecca Holiday • Bobo Haha • Agent Six • Caesar Salazar • Diane Farrah • White Knight • Dinosaur EVO Secret Saturdays Zak Saturday • Doc Saturday • Drew Saturday • Fiskerton Saturday • Komodo • Zon MAD Benjamin Franklin Ben 10 Aliens Introduced in Ben 10 Arctiguana • Blitzwolfer • Buzzshock • Cannonbolt • Diamondhead • Ditto • Eye Guy • Four Arms • Frankenstrike • Ghostfreak • Grey Matter • Heatblast • Ripjaws • Snare-oh • Stinkfly • Upchuck • Upgrade • Way Big • Wildmutt • Wildvine • XLR8 Introduced in Ben 10: Alien Force Introduced in Ben 10: Alien Swarm Alien X • Big Chill • Brainstorm • Chromastone • Echo Echo • Goop • Humungousaur • Jetray • Lodestar • Rath • Spidermonkey • Swampfire Nanomech Introduced in Ben 10: Ultimate Alien Introduced in Heroes United AmpFibian • Armodrillo • ChamAlien • Clockwork • Eatle • Fasttrack • Jury Rigg • NRG • Terraspin • Water Hazard Shocksquatch Introduced in Ben 10: Omniverse Astrodactyl • Atomix • Ball Weevil • Bloxx • Bullfrag • Crashhopper • Feedback • Gravattack • Gutrot • Kickin Hawk • Mole-Stache • Pesky Dust • The Worst • Toepick • Walkatrout • Whampire Ultimate Forms Big Chill • Cannonbolt • Echo Echo • Humungousaur • Spidermonkey • Swampfire • Way Big • Wildmutt Future Aliens Fusion Aliens See Also Sandbox • Shellhead • Snakepit • Spitter Diamond Matter • Heat Jaws • Stink Arms Decagon Vreedle • Rocks • Squidstrictor • Thriller Whale • Ventrilosquid • Eon Non-Canon Portaler • Antigravitesla • Bob the Blob • Plantapocalypse Alternate Bens Primary Timeline Ben Prime • Ben 10,000 Other Timelines Ben 10,000 (Ultimate Alien) • Ben Tennyson (Race Against Time Timeline) • Eon • Eon's Servants • Bad Ben • Benzarro • Nega Ben • No Watch Ben • Ben 23 • Mad Ben • Ben Tennyson (Gwen 10)