Ben 10 Wiki
Ben 10 Wiki
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I would never do anything to hurt Mr. Tennyson. I'm a fan.

– Jimmy to Kevin.[1]

James "Jimmy" Jonah Jones is a kid who is a major fan of Ben and his alien heroes. He runs a website with pictures of aliens around the world, including every alien Ben has ever turned into, even dating back to when Ben was ten years old. He always refers to Ben as Mr. Tennyson.


Regular Appearances

Jimmy is a fair complexioned kid.

In Ultimate Alien, Jimmy had light-brown hair and black eyes. He wore a green hoodie with a white 10 on the black circle behind the straps, and a white shirt. He also wore dark green cargo pants and black shoes.

In Omniverse, Jimmy has freckles, as well as reddish-brown hair and eyes. He wears the jacket version of his hoodie and a black shirt with olive green pants.

Occasional Appearances

In The Big Story, he wore a white bicycle helmet.


Jimmy is smart and proficient in many technological fields. He has a blog that has been open since he was five which deals with alien sights and mysteries. Jimmy is helpful and never lies. It seems that the most important thing for him is to get information for his blog. He claims to be the #1 fan of Ben, which Ben ignores. Jimmy is not afraid to fight if he could protect his friends in doing so.


Ultimate Alien

Jimmy first appears in Fame when Ben finds out that Jimmy has been posting things and has sent out a video about him and his aliens on a website that finally showed the world that Ben has the ability to turn into aliens, as he thought Ben would like the fame and money, but Ben ended up being both liked and hated by the public as a result. The team realize that Jimmy is pretty useful so they let him do what he wants.

In Andreas' Fault, Jimmy told Ben about the Forever Knights and where they can go to find the castle.

In Eye of the Beholder, Jimmy gave Ben "relationship advice" concerning his relationship with Julie.

In The Big Story, Jimmy was trying to get some footage of an alien ship but instead finds a plant alien trying to take over Earth. Jimmy was able defeat the plant and plant copies of Ben, Gwen and Kevin using peanuts which proved to be the plants only weakness.

In The Ultimate Enemy: Part 1, Jimmy and his mother were transformed into Esoterica.


Jimmy returns in Return to Forever, where he was first seen in his room watching a news report by Will Harangue. He pauses the video and notices two mysterious figures behind Harangue. He prints the image and goes straight to Harangue showing it to him. Jimmy wants to get the unedited version of the fight, but Will asks for money in return. Jimmy objects, which leads to Will threatening to call security on him.

Later, Jimmy starts questioning aliens in Undertown about the photo. However, the aliens all react in fear and act like they don't know anything. Unfortunately, he runs into Sir Morton who begins to chase him through Undertown. Ben and Rook notices that and save Jimmy from the Forever Knights.

Jimmy reveals that he is an expert at Alien Tech and he knows everything after viewing videos. Jimmy want to help Ben and Rook find the Forever Knights but they both disagree and lock him in the Proto-TRUK. However they were captured by the Forever Knights and unable to escape. Meanwhile, back at the Proto-TRUK, Jimmy is taking photos of himself.

Ben and Rook try to come up with a plan to escape until Jimmy comes crashing through the wall in the Proto-TRUK. He turns off the force field which trapped Ben and he heads over to free Rook as well. Not much later, Ben and Rook defeated the Forever Knights but Chadwick had already started the Pulse Generator. Hearing what he has done, Jimmy knocks him out by using a wrench. He tells Ben to transform into Grey Matter but Ben gets Juryrigg instead. Thankfully, Juryrigg was able to stop the Generator saving all the aliens in Undertown.

Jimmy appears in Cough It Up, when he records how Sunder wrecks a shop. Ben arrives to fight Sunder, which makes Jimmy excited. Before he could upload the battle to his blog, his cell phone's battery dies. Seeing this, he runs away. Ben gets saved by Spanner and Jimmy asks him if he is there for the bounty hunters. Ben tells him that he just wanted some socks. Jimmy notices Kraab and follows him to the Black Hole, where he is blocked by a Bouncer.

He somehow managed to uncover the information that the bounty hunters are after Argit and tells that to Ben and Rook. Rook wants to investigate but Ben ignores it. Jimmy runs away and as he ran Spanner appears and tells Ben the same thing. Hearing Spanner, Ben gets excited and goes to Argit.

Jimmy later helped Ben, Rook and Argit to hide from the hunters in an abandoned storage unit. Ben said he was hungry, so Jimmy said he would get him food. Interestingly, Spanner appears (as Jimmy leaves) and brings food. Rook notices that Jimmy and Spanner have never been seen at the same time. Ben, Rook and Argit get attacked by the Sotoraggian trio and they manage to take Argit with them. As Spanner flies out of the storage, Jimmy looks into the storage from above. After this, Ben agrees with Rook that Jimmy might be Spanner.

Ben, Rook and Jimmy arrive at the Black Hole and Ben tells Jimmy to stay outside. Jimmy wasn't seen until Spanner got blasted off by Sunder and he fell back. Ben gets really annoyed and Jimmy runs out the bar. Spanner immediately returns which makes Ben even more annoyed, saying that he isn't fooling anyone.

After the hunters got banned from Undertown, Jimmy appears and says that he knew that Ben would be able to pull it off. Ben and Rook stare at Jimmy and ask if he has anything to say. He tells them that he wasn't waiting outside the bar and he was hiding above the ceiling all the time. Rook scans him but he couldn't detect the troopship. Ben wants answers but Jimmy goes to Argit to get an interview with him.

In Fight at the Museum, Jimmy attends the alien artifacts exhibit at the museum. When Subdora steals the Orb of Pooma Poonkoo, Ben tells him to get security to lock down all the exits. After doing so, Jimmy walks in on Ben fighting Subdora. Ben, still believing Jimmy is Spanner, tells him to help, to Jimmy's confusion. Spanner then appears, proving that he and Jimmy are not the same person.


Ultimate Alien

Season 1

Season 3


Season 4

Season 6

Season 7

Video Games

Jimmy in Cosmic Destruction

Ben 10 Ultimate Alien: Cosmic Destruction

Jimmy gave Ben info on Evil Way Big, and asked him trivia questions (according to Ben).

At the end of the game, he tells Ben about the trailer for a new Sumo Slammers movie.


Jimmy is an homage to Jimmy Olsen and Rick Jones, to Superman and the Incredible Hulk being sidekicks, loyal friends and fans to them respectively. Jimmy's middle name is Jonah, which is a reference to Marvel's J Jonah Jameson.


  • Jimmy is an alien tech expert capable of operating complex terrestrial mechanisms quite skillfully.[2]
  • Jimmy's e-mail address is "benfan1".[3]
  • Ben and Jimmy both share a keen interest in Sumo Slammers.[4]
  • Jimmy seemingly has an addiction to peanuts since Eye of the Beholder.
  • Jimmy plays Craft of War (a wordplay on World of Warcraft) with a Forever Knight NCO that uses the user name, foreverduke838.[4]
  • Jimmy thought Jetray was called "Jeffrey", until Ben corrected him.[1]
  • Jimmy is trying to save up for a hoodie and a shirt that is identical to Ben's.[DJW 1]
  • In Ultimate Alien, Ben considered him a reliable source of information.[4]
    • However, in Omniverse, Ben is shown to be very skeptical and dismissive of Jimmy's claims and theories.[2]
  • For a strange reason, when Jimmy transformed into an Esoterica, he gained height until he was the same size as an adult.[5]
  • Jimmy's Ultimate Alien appearance was designed by Glenn Wong, with color styling by Chris Hooten.[GW 1]
  • Dimension 23's Jimmy is just a little kid who does not have a blog.[DJW 2]


Crew Statements

Matt Wayne

Glenn Wong

Derrick J. Wyatt

Tennyson Family Ben TennysonGwen TennysonMax TennysonCarl TennysonSandra TennysonFrank TennysonNatalie TennysonKen TennysonGordon TennysonBetty Jean TennysonJoel TennysonCamille Mann-TennysonVera TennysonClyde FifeBig Chill's OffspringVerdona
Levin Family Kevin LevinMrs. LevinDevin LevinZedHarvey Hackett
Rook Family Rook BlonkoRook DaRook BrallaRook SharRook ShimRook ShiRook Ben
Plumbers MagistrataMagister PatellidayMagister ArnuxMagister PykeMagister HulkaMagister CoronachHobbleMolly GuntherBranniganZorianAlan AlbrightHelen WheelsManny ArmstrongCooperLucy MannBrykChortleBig EdTackWat-SennScoutJerryI.M. WerfzelMedicLeadfootMortyElliotBromebaStick DougRobucketBel Biv KaboomDraxFistinaWes GreenXyleneMagister LabridMagister Prior GilhilVictor ValidusPierce Wheels
Secondary Characters Cash MurrayEsterHexIgnacius BaumannJ.T.Jimmy JonesJulie YamamotoKai GreenPakmarProfessor ParadoxRad DudesmanReinrassig IIIShipSkurdTetrax Shard
Galvan AzmuthAzmuth's FatherBlukicDribaLuhleyUjinTeacherFergiChadzmuthY-itDuffyZennithSoldiersMajor
Andromeda Aliens AndreasBivalvanGalapagusP'andorRa'ad
Sentient Ultimate Forms Sentient Ultimate Big ChillSentient Ultimate CannonboltSentient Ultimate Echo EchoSentient Ultimate HumungousaurSentient Ultimate SpidermonkeySentient Ultimate Swampfire
Forever Knights Sir GeorgeWinstonforeverduke838Squire
Galactic Enforcers UltimosSynaptakTini
Actors Abel NorthCerebrocrustacean ActorDeefus VeeblepisterFridgeGourmand ActorGwenettesHughJennifer NocturnePiscciss Volann ActorSwampsVilgax Actor
Atrocians Blue-WorstGreen-WorstOrange-WorstPink-WorstPurple-WorstShe-WorstSlim-WorstViolet-Worst
Kinecelerans DJE-NK8-EML-EN-8N-DT8-M
Undertown Residents BlowfeldBuzzElián ZeeGenghis KenGilford BromleyGil SteptoeLacknoLillimusha DiForestiniLoovis SlerdlerkMedicSmoothy VendorSock VendorSponge GorbTentacle VendorToby MonitorWhalium Whalace
Others Alton AlabasterAmazing AlanAndyAnicetoBaby CelestialsapienBahrvadBailiff (Alien Force)Bailiff (Omniverse)BarryBen's TeacherBezelBill GacksBillyBlowfishBobDr. BorgesBradPrivate BrownbagAgent BrysonCaitiffCarol SmithSergeant Cast IronCentur SquaarChicken AlienCicelySergeant CookmeisterCow AlienDeckaDoggy BuddyJudge DomstolDonovan GrandSmithDougDragonDubbaEarlEddie GrandSmithEdithEdnaEgorElsgoodElvesEmilyEuniceMrs. FangFiery BuddyFitzFlorenceFritzFrolicGar Red WindGaterboyGenaroGilbertGlutoGrackGrickGeneral GroffHandy BuddyHaplorHaroldHectorHelena XaglivHelioHervéHighbreed CouncilorsHighbreed SupremeHotel GuardHugoIgnaceousImmovable ObjectIshiyamaJamieJeffJoan MaplewoodJoeMrs. JonesJonesyJuliusDr. KellyKenkoKwarrelKyle MonitorLarryLaurence WainrightCouncilwoman LiangLobster ManAgent LockeLouLuLucyLukikMadisonMadison's FatherMaliceMandyMargieMartySheriff MasonMaureen NocturneMechamorph GuardMegawhattsMollyMother CelestialsapienMouldywarpMullenMyaxxNaljian MotherNatalie AlvarezNull Void SettlersOrbParts DealerPierce's GirlfriendPorcupinePresidentProbityPyxiQuinceRandolph PervisRayonaRegisMrs. RheaultRogerColonel RozumSanctuary GuardiansScreegitSenseiSentinelCaptain ShawSheelaneShelbyShip-It EmployeeDr. ShuemanSmuggled PsycholeopterranSparring PartnerSpellbinderLieutenant SteelSteve CummingsSugiliteSumo Slammer Collecting BoyTechnorgTeejTetramand PriestThaddeus J. CollinsThomas JinglesTiffanyTiffinTim DeanTinyTiny's FatherTiny's MotherTodd MaplewoodTrinaTrukkTwoTwoTylerVance VetteroyVexxViktoriaWaltWarriorMr. WebbOfficer WellsWolf BlitzerWrestlerMr. YamamotoYetiYosemite Park RangerZabinZaw-VeenullZs'iza and Zs'oiseMr. ZuZzzakt
Original Future ArgitBen TennysonDevlin LevinGwendolyn TennysonGwendolyn Tennyson (Ben's Daughter)J. Jonah JonesKai GreenKen TennysonKen's PetKevin LevinMax TennysonOne-Eyed Alien KidRook Blonko
Ultimate Alien Future Ben Tennyson
RAT Timeline Ben TennysonGwen TennysonMax TennysonCarl TennysonSandra TennysonCash MurrayEdward WhiteJ.T.Doris DaltonMr. HawkinsMr. WhittingtonMr. EnguellsMr. JenyxMrs. CarlyleConstantine JacobsOld Man
Gweniverse Gwen Tennyson
Gwen 10 (What-If?) Gwen TennysonBen TennysonMax Tennyson
Goodbye and Good Riddance (What-If?) Ben TennysonGwen TennysonMax TennysonCarl TennysonSandra TennysonCash MurrayJ.T.ArnoldPetersonBen's Dog
Dimension 23 Ben TennysonTetrax ShardSevenSevenAzmuth
No Watch Timeline Ben TennysonGwen TennysonMax TennysonKevin LevinJ.T.
Argitrix Timeline Argit
Mad Ben's Dimension Mad HarangueMad Rook
Books Alien's ActorBen's ActorBig Chill's ActorChromastone's ActorEcho Echo's ActorGladiatorGoop's ActorGuardHumungousaur's ActorJetray's ActorLittle GirlLorelaiPlen StroffPresidentPrisoner From the Planet DustovRobotic BullSoolSpidermonkey's ActorSwampfire's ActorTimothy
Generator Rex Rex SalazarRebecca HolidayBobo HahaAgent SixCaesar SalazarDiane FarrahWhite KnightDinosaur EVO
Secret Saturdays Zak SaturdayDoc SaturdayDrew SaturdayFiskerton SaturdayKomodoZon
MAD Benjamin Franklin