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Ben 10 Wiki
34497a3fe0ef52949a1ba8e99894ed69 This article belongs to the Classic Continuity

"Give up, Rojo!"
"Yeah, you bad guys never win anyway!"
"Oh, well see, I'm a bad girl!"

Rook, Upgrade, and Rojo.[1]

Joey,[2][merch 1] better known as Rojo, is the leader of a heavily-armed female biker gang who first appeared in The Alliance.


In the Original Series, Rojo had maroon hair, pale skin, and black lipstick and brown eyes. She wore brown jeans as well as a gothic black jacket, belt, and choker necklace, along with a grey shirt and gloves. Rojo had four ear piercings; three on the right and one on the left. Her gang insignia was a skull, which she wore on each of the shoulders on her jacket.

After one of Vilgax's Mechadroids fused with her body, her jacket and pants became ripped, and her skin transmuted to a shade of red. She also developed cybernetic eyes, retractable claws and shoulder-mounted laser blasters.

When merged with Upgrade, Upgrade took the body shape of her Mechadroid form.

After being separated from the Mechadroid, she looked the same as her appearance before fusing with the Mechadroid, but her jacket and brown shorts are torn from the earlier transformation.

When Rojo joined the Negative 10, she acquired an alien tech suit. The suit was primarily grey and came with a head guard and red shoulder pads. She now wore her skull emblem on her chest.

In Ultimate Alien, Rojo had lighter skin and shoulder-length red hair. She wore steel black and red armor with five silver spikes on each of her shoulder pads. She still wore her skull emblem on her chest.

In Omniverse, Rojo had paler skin, black markings extending from each of her eyes, and black lipstick. She wore a new head guard and her shoulder pads had less spikes on them. She wore the skull emblem on her chest.


Rojo is a selfish, greedy, violent and amoral tomboy who is not hesitant to attack innocent bystanders simply because they annoy her. She does not like being bossed around, and only followed Vilgax's orders after he threatened to torture her. She's also more than willing to harm children like Ben and Gwen.[3]


Ben 10[]

In The Alliance, when Rojo tried to rob an armored truck, she was thwarted by Four Arms and two of Vilgax's Mechadroids coming after him. The remnants of one of Vilgax's defeated Mechadroids merged with Rojo as she investigated it, and she became a powerful cyborg. Rojo went on a short crime spree before being contacted by Vilgax, whom offered to teach her how to use her power should she serve him, and threatened to destroy her should she refuse or fail his task.

Rojo was sent after Ben Tennyson and the Omnitrix in his possession at the hospital where Max Tennyson stayed. She was foiled by Heatblast's efforts. Later on, Rojo rampaged down at the local police academy in order to draw Ben out, but was turned back to normal when Upgrade merged with her, took over her body and shorted-out the spare parts, after which Gwen Tennyson knocked her unconscious for attempting a sneak attack on Upgrade.

Rojo returned in Ben 10 vs. the Negative 10, as part of the Negative 10, with new alien tech and armor. In that episode, she was also shown to have a rivalry with Charmcaster over being the "baddest girl" in the group. In the battle, she interfered with Gwen and Charmcaster's duel but got blasted away by Charmcaster and Gwen's combined spell power. Late, she quarreled with the other Negative 10 members and later was trapped in the force field where the Sub-Energy once resided.

Ultimate Alien[]

Rojo returned in Hit 'Em Where They Live, where she and her gang tried to rob a train. She apparently reformed her biker gang and upgraded them, using blue and yellow versions of her new red high-lighted suit. They were eventually stopped by Rath and the gang.


Rojo returned in The Color of Monkey. She was hired by Simian to steal an already illegally obtained a Tiffin from Argit's new company Argistix Security. Shortly after being hired, she roughed up a couple of bar patrons and ambushed Argit's truck that was supposed to contain the Tiffin, and instead only got an angry Techadon robot. Having evaded Ben and Rook, she and Simian made a second attempt to steal the Tiffin, with Simian bringing her the Techadon from earlier to have her tear it open.

While retrieving the Tiffin and rendering Simian unconscious, Rojo tore into the willing Techadon and stole the Tiffin just in time for Ben and Rook to give chase on an Upgraded Tenn-Speed. The chase ended at a Mr. Smoothy in Bellwood, where she was surrounded and arrested by the Plumbers alongside Simian.

In The Most Dangerous Game Show, Rojo was one of many contestants who were competing (unwillingly) to win Ben's hand in marriage on Charles Zenith's game show. After losing, she was transported to the Null Void.

Powers and Abilities[]

When she merged with Vilgax's Mechadroid, the upgrade gave her the abilities of flight and superhuman speed. She also gained sharp metallic claws and robotic "eyes" on her head and shoulders: the head ones capable of zooming in and identifying objects like the Omnitrix from a great distance away; and the shoulder ones capable of extending out of her body and firing laser blasts. She also obtained enhanced strength, to the point where she accidentally destroyed valuable jewelry just by holding them tight enough in her palm, as well as enhanced durability, shown when she shrugged off a tank shell with no visible scratches. In this form, Vilgax is able to psychically communicate with her and show her visions, which cause her immense mental pain.[3]


In the Original Series and Omniverse, Rojo carried a unique laser rifle with a shark-teeth design on the front of the barrel.

In Omniverse, Rojo rode on a hovering jet-powered motorcycle, which she named Caballo (Spanish for "Horse"). Not only could it both ride on the ground and fly in the air, but it could also fire missiles from an opening on the front.


When in her Mechadroid-merged form, Rojo is able to be stopped by intense fire, as shown when Heatblast both knocked her away with the fire from his head and sent her flying by lighting up an oil puddle below her. She was also susceptible to her body being possessed and compromised by Galvanic Mechamorphs.[3]


Ben 10[]

Season 1[]

Season 4[]

Ultimate Alien[]

Season 1[]


Season 7[]

Season 8[]

Naming and Translations[]

Language Name Origin
French Rouge From rouge, red
Portuguese (Br) Rojo
Robótica (while being infused with a Mechadroid)
From the original name
Robótica, from robotics


Rojo is Spanish for red, referencing her red armor. It is also a compacted version of Robot Joey.




Duncan Rouleau[]

Thomas Perkins[]

Prime Timeline
Vilgax Bioid (Original)Bioid (Omnitrix Army)MechadroidSquid MonsterUltimate Vilgax
Dr. Animo Mutant FrogMutant HamsterMutant ParrotLiving MammothLiving TyrannosaurusHeatbatMutant Seagull (Original Series)Mutant OctopusMutant Lepidopterran/Splixson HybridMutant BatMutant Prairie DogMutant HornetPterodactylPterodactyl LeaderMutant KangarooMutant SnailMutant AntMutant MosquitoMutant GiraffeTechnobugChupacabraFrankencryptidMutant Squirrel
Bounty Hunters SixSixSevenSevenEightEightSynthroidSunderKraabVulkanus
Zombozo Acid BreathFrightwigThumbskullZombie Clowns
Rojo's Gang RojoAzulAmarillo
Magic AddwaityaCharmcasterDarkstarPallorfangScrutin
Forever Knights Sir DriscollEnochPatrickUrienSir CyrusJoseph ChadwickConnorSir DagonetDr. JekyllSir MortonSir ReginaldTwin KnightsSquireCoach FinnMech DragonRed KnightSquires
Great One Enforcer AlienInterpreter AlienLeader Alien
Zs'Skayr CrüjoKuphuluLord TransylMummyViktorWerewolfAnur-Mirrored BenAnur-Mirrored CharmcasterAnur-Mirrored HobbleAnur-Mirrored RookLiving Pumpkins
Vengers Billy BillionsCaptain NemesisKangaroo KommandoMazumaSimonsWill Harangue
Lenopan Mr. MannMrs. MannCamille's Ex-BoyfriendMann Family's Bodyguard
Road Crew Baron HighwayTurbineRoad Rage
Evil Bens EonAlbedoBad BenBenzarroEon's ServantsMad BenNega Ben
Highbreed Highbreed CommanderDNAlienEdnaMoeShemMizaruXenocite
Incursean Empire MilleousAtteaRaffMajor GlorffLieutenant RanaSangfroidWay Bads
Vreedles MaPaOctagonRhomboidParallelogramIsosceles Right TriangleDodecahedronPretty Boy
The Hive Elena ValadisMicrochipDecoy QueenLiving BuildingsShip-It Employee
Aggregor AggrebotsUltimate Aggregor
Dagon LucubraConduit EdwardsRichEsoterica
Faction Dr. PsychobosKhyberKhyber's PanuncianMalware
Psyphon Bug-LiteBouncerBubble HelmetLiamGorvanPsyphon's MinionNightmarish AlienPiscciss Volann PrisonerPickaxe AliensSweet-Eels SparklefunkHooded AlienThunderpigTummyhead
Fistrick CorvoHoodlumFistrick's Thug
Rooters ServantisPhil BillingsRagnarokSwiftLeander
Robots B.L.R.R.T.S.A.M.Slix VigmaSlix Vigma's BodyguardsRed RobotComputronComputron's MinionsOttoTechadon RobotsMechaneerNaljian DestructorR.E.D.sMouse MinionsStalkerRemoteJungle Guardians
Others AntonioBenevelonBlue LeaderBuzzCharles ZenithClancyCodon Stream MonsterConvictMayor ColemanCollectimusLord DoomicusDuaneFrankPrince GyulaHammerHowell WainwrightHulex ColonelHulex WorkersInspector 13JackJarettJonah MelvilleKolarCaptain KorkKrakkenKundoLepidopterran PrisonerLiving MushroomsMaltruantMino-TogaMissyMorggMutant SeagullsMyceliumNyancy ChanPiscciss KrakenPinkyPlant AlienPlant ClonesPoltroonPrisoner 775Red LeaderSeebikSimianSolid PluggSsserpentSubliminoSuemungousaurSunnySurgeonTetramand PrisonerTrash MonsterTrombipulorViolet OffendersKing XarionYetta
Alternate Dimensions/Timelines
Original Future Timeline Dr. AnimoExo-SkullKevin LevinMot SnikrepSplootVilgaxVulkanus
Omniverse Future Timeline Dr. AnimoExo-SkullSubdora
Time Heals Timeline CharmcasterHex
Dimension 23 Carrot MonsterOrange Offenders
Mad Ben's Dimension Mad Pakmar
Gwen 10 (What-If?) Vilgax
Goodbye and Good Riddance (What-If?) VilgaxBird Villains
Books AnimusAztakCaeciliaDJ ZenutDr. DoomFrostbyteGontuGroombahInfinite MonkeyLouie the HairdresserParasiteScornSeñor ChaosSlezakThe Collector (Collectible Heroes)The Collector (Powerless)Trash Monster (Down in the Dumps)Triple Trouble
Games Crystal ClawsFeralineForever NinjaFusion BenGiant Vilgax DestroyerMacerootRemoteSnakeflySnap DragonTerracotta ArmyTerracotta GeneralTerracotta DragonThornhoundVulpin Serpent
Non-Ben 10
Generator Rex AlphaBlack KnightBiowulfI-BolSkalamander
The Secret Saturdays V.V. ArgostMunya