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

WALL... OF... SOUND!!!

– Echo Echo while using his sonic attacks.

Echo Echo is the Omnitrix's DNA sample of a Sonorosian[1][2] from the planet Sonorosia.[merch 1]


Echo Echo is a small, white humanoid made of silicon.[3][4] His body is natural; although he strongly resembles a robot, he is neither it nor an animated containment suit.[note 1] One of his most noticeable features is a square appendage resembling an MP3 player behind his back with a port on it, decorated with a 10 symbol and what looks like cassette tapes on his lower legs. The green circle-shaped indents on the back of Echo Echo's hands are sound holes which help him resonate,[MW 1] and the inside of his mouth is also green with lines that give it the appearance of an amplifier. He also wears headphones so he would not be hurt by his own sonic screams.[DM 2] The headphones are attached to the appendage on his back.

In Alien Force and Ultimate Alien, Echo Echo wore the original Omnitrix/Ultimatrix symbol on his chest.

In Heroes United, Echo Echo looked mostly the same as before, except his eyes were bigger and his mouth was recolored black.

In Omniverse, Echo Echo's eyes bulge out, he has two black stripes on both of his earplugs, which are more pronounced, his legs are stubby, he now has three toes, and the green circles on his hands are now bigger. He is also shorter and has a circular shape on his stomach and the tapes on his legs are now gone. His head is less round and is wider and the outlines of his mouth and eyes are thicker as well as his wires. He wears the Omnitrix symbol on his forehead.

Powers and Abilities[]

Echo Echo can scream at audible to ultrasonic frequencies capable of shattering steel,[merch 2] redirecting projectiles in mid-flight,[6] blowing up multiple Laser Lances,[7] and even damaging Taydenite at the right frequency.[DJW 5] Echo Echo can also transmit sound waves through speakers, such as cellphones which can be used as a weapon for the person on the other line.[8]

Echo Echo has the ability to create an unknown number of exact duplicates of himself.[merch 3] These clones act so harmoniously that they can finish each other's sentences. Even if entire groups of his clones are destroyed, Echo Echo can survive as long as at least one of him is still intact.[9] Using his self-duplication, Echo Echo can create copies of any object he is holding while making clones.[2][GT 1][note 2]

Echo Echo can use his sonic screams to create a force field, as well as sonic waves.[10]

By combining his sonic screams and his self-duplication, Echo Echo can create a wall of sound, where he and his clones create a gigantic sound wave that can deal massive damage to his opponents and structures.[6][11]

Echo Echo can create an echo chamber, where his clones attack from all directions and keep screaming until the target is knocked out or defeated, as demonstrated in his fights with Helen[12] and Ultimate Kevin.[9]

Echo Echo can levitate in the air.[13][14]

Echo Echo seems to have more strength than his size suggests, as he can carry a power coupling completely on his own,[15] and kick off the trunk door from the Mark 10 with one foot.[9]

With the help of multiple clones, Echo Echo can throw a Plumber Ship about a meter,[16] carry a Murk Gourmand,[17] and hold his own against larger opponents such as the mechanical dragon,[7] a Highbreed,[18] and Ultimate Kevin.[9]

Echo Echo also appears to be rather durable, as he and his clones were able to withstand being thrown against a wall.[7]

Echo Echo is quite agile, as he is capable of jumping exceptionally high.[7][6]

Using his sonic screams, Echo Echo can locate objects and people, giving him the ability of echolocation.[18]

Echo Echo can channel vibrations to enhance his screams, as seen when he touched Kevin, who had absorbed Varsidium that caused him to vibrate when struck by Gwen's mana.[19]

By duplicating before cancelling the transformation before merging back, Echo Echo can clone the Ultimatrix and its user, with the resulting duplicates able to transform into different aliens separately. The copies can then transform back into Echo Echo before remerging into a single copy, returning the user to one single body.[20]

When under the effects of a cold virus, Echo Echo can accidentally unleash sonic sneezes rather than intentional sonic screams.[21]


Echo Echo's sonic screams can easily hurt his teammates' ears.[7][22]

There is a limit to the number of duplicates Echo Echo can make, which depends on the amount of energy he has access to.[DM 1]

Echo Echo is vulnerable to fire, such as that generated by a Methanosian, an Aerophibian's neuroshock blasts, and electricity generated by a Cerebrocrustacean.[9]

Echo Echo can be rendered unconscious if hit by a quill from a member of Argit's species.[6]

Echo Echo can be controlled by a Vladat via their Corrupturas.[DJW 7]

Echo Echo can be immobilized by a Necrofriggian's ice breath.[9]

Echo Echo can be affected by the cold virus.[21]


Alien Force[]

Ultimate Alien[]




Season 1
Season 2
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Season 1
Season 2
Season 3
Season 4
Season 8
Season 8

Cartoon Network Action Packs
Alien Force
Ultimate Alien
Chapter Books
Alien Force
Alien Force
Short Books
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Video Games[]

Ben 10: Alien Force[]

Echo Echo is a playable alien character in the Nintendo DS version of the game.

Echo Echo is initially unavailable but is unlocked upon completion of the Shipyard 1-2 level.

Echo Echo is able to use sonic screams and up to six duplicates to chain various combo attacks.

Echo Echo is not required to be used at all in order to complete the game.

Ben 10 Alien Force: Vilgax Attacks[]

Echo Echo is a playable alien in the game.

Xbox 360, Nintendo Wii, PlayStation 2 and PlayStation Portable Versions[]

Due to the Omnitrix rebooting after Ben's abuse of the quick-change feature during his battle with an animated Mr. Smoothy mascot, Echo Echo was temporarily locked until Ben's arrival on Anur Phaetos.

Echo Echo is able to duplicate himself up to two times, for a total of three Echo Echos at a time, in order to activate multiple pressure-sensitive platforms simultaneously.

Echo Echo is able to use his sonic screams to shatter obstructing crystals.

Wall of Sound is an unlockable combo move for Echo Echo.

Echo Echo is vital for progression on the Anur Phaetos and MorOtesi levels of the game.

Nintendo DS Version[]

Echo Echo and Chromastone are reunlocked upon Ben's arrival on MorOtesi.

Echo Echo is able to use his sonic screams to shatter MorOtesi diamonds.

Ben 10 Alien Force: The Rise of Hex[]

Echo Echo is a playable alien in the game.

Due to the Omnitrix shorting out after Ben fiddled with it, Echo Echo was temporarily locked until the beginning of Level 6.

Echo Echo is able to duplicate himself up to two times, for a total of three Echo Echoes at a time, in order to activate linked switches simultaneously for access to further areas. Each duplicate can be controlled separately.

Echo Echo's small size allows him to navigate areas that most of Ben's aliens and Ben himself are unable to access.

Ben 10 Ultimate Alien: Cosmic Destruction[]

Echo Echo is a playable alien in the game.

Similar to Spidermonkey, Echo Echo's small size allows him to fit into small passages other aliens cannot. Like in Vilgax Attacks, Echo Echo can only clone himself to a maximum of three clones at a time. He can also go Ultimate.

Echo Echo is vital for progression on The Catacombs and The Amazon levels of the game. He is also the default optional alien for the Devil's Tower level.

Naming and Translations[]

Language Name Origin
Afrikaans Eggo Eggo From eggo eggo, echo echo
Arabic صدى صدى/S'da S'da From صدى/sada, echo
Bulgarian Exo Exo/Eho Eho From exo/eho, echo
Chinese 小波波 From (Xiǎo), little, and 波波 (Bō Bō), wave
Croatian Eho Eho/Exo Exo From eho/exo, echo
Danish Ekko Ekko From ekko, echo
French Écho Écho From écho écho, echo echo
German Echo Echo From the original English name
Greek Ηχώ Ηχώ From ηχώ, echo
Hebrew אקו אקו From the original English name
Hungarian Echo Echo From the original English name
Italian Eco Eco From eco, echo
Korean 에코 From 에코, Echo
Norwegian Ekko Ekko From ekko, echo
Polish Echo Echo From the original English name
Portuguese (Br) Eco Eco From eco, echo.
Romanian Ecou Ecou From ecou, echo
Russian Эхо Эхо / Ekho Ekho From эхо/ekho, echo
Serbian Eho Eho/Exo Exo From eho/exo, echo
Spanish (HA) Eco/Eco Eco From eco, echo
Spanish (Spain) Eco/Eco Eco From eco, echo
Swedish Eko-eko From eko, echo
Turkish Eko Eko From eko, echo


An echo is the reflection of a sound that arrives at a listener with a delay after the direct sound, referencing Echo Echo's audio-kinetic powers. The repetition of the word "echo" in his name references both the nature of an echo and his self-duplication power.


  • Like Rath and Atomix, Echo Echo gives names to his attacks and moves. The names of the attacks are notably less hammy than the former two. This trait is shared with Ultimate Echo Echo.
  • In FusionFall, there is a fusion of Echo Echo that, when defeated, releases Red Knight sets.
  • Duncan Rouleau once stated that Blitzwolfer's sonic howls are more powerful than Echo Echo's sonic screams.[DR 1] He later did not recall making the original statement, elaborating that the answer to the question depends on what the story needs.[DR 2]
  • If Ben were to use Echo Echo with Skurd attached to the Omnitrix, Echo Echo's clones would have to remain huddled to use Skurd's power.[DJW 8]
  • Echo Echo's singing sounds like auto-tune, though he is really good at dubstep.[DJW 9]
  • Dee Bradley Baker did Echo Echo's voice by talking while inhaling and squinching his upper throat shut.[DBB 1][DBB 2]
  • Echo Echo was originally named Echo.[GM 1]
  • Echo Echo originally had the ability to extend his neck and arms in the pre-production stage of Alien Force.[GM 1]
  • Echo Echo had concept art drawn by Eric Canete[EC 1] and Glen Murakami, with his final design created by Glen, with color styling by Chris Hooten.[GW 1]
    • Echo Echo's design was approved rather quickly.[EC 1]
  • Echo Echo's design was based on an Apple iPod.[GW 1]
  • Echo Echo was supposed to retain the Omnitrix symbol on his chest in the pre-production stage of Omniverse.[DJW 10]
  • Had Negative Echo Echo appeared in Omniverse, he would have been either a red recolor of Echo Echo's appearance in said series or at least have some red markings.[DJW 11]
    • Derrick eventually drew a version of Negative Echo Echo in the Omniverse art style in 2020.[DJW 12]
  • Echo Echo is similar in some ways to Echoes, the Stand of Koichi Hirose in Part 4 of the manga and anime series Jojo's Bizarre Adventure.
    • Both Echo Echo and Echoes ACT 3 are short, white humanoids with green as a secondary color.
    • Echoes (specifically ACT 1 and ACT 2) and Echo Echo are able to unleash powerful sound attacks from multiple angles simultaneously (Echo Echo via his duplication, and Echoes through writing onomatopoeia on surfaces).
  • Echo Echo was Dwayne McDuffie's favorite Omnitrix alien.[DM 3]
  • Derrick preferred Echo Echo to Ultimate Echo Echo.[DJW 13]
  • When asked if Echo Echo could levitate, Derrick considered it a mistake with his powers.[DJW 14]


  1. A fan once asked Dwayne McDuffie if Echo Echo was either a robot or some kind of living containment suit, and then shared a theory that Echo Echo's being is actually living sound waves for a containment suit to hold; Dwayne responded on September 22, 2008 by saying "Echo [Echo] is a member of a race that just looks like that".[DM 1] Later, Derrick J. Wyatt would claim multiple times that Echo Echo was in fact a containment suit housing living sound waves while answering fan questions,[DJW 1][DJW 2] while specifying that he did not come up with the concept,[DJW 3] and got it from Dwayne McDuffie.[DJW 4] Due to the contradictions between Dwayne and Derrick, Echo Echo is no longer considered by the wiki to have a containment suit.[5]
  2. According to Derrick J. Wyatt, Echo Echo's object duplication was due to a glitch in the original Ultimatrix. This ability was removed from Echo Echo's DNA when Ben acquired the new Omnitrix in The Ultimate Enemy: Part 2.[DJW 6] However, it is unknown if this is canon as Matt Wayne seemed to be unaware of the existence of glitch powers.[MW 2]



Crew Statements[]

Matt Wayne[]

Dwayne McDuffie[]

Derrick J. Wyatt[]

Geoffrey Thorne[]

Duncan Rouleau[]

Dee Bradley Baker[]

Glen Murakami[]

Eric Canete[]

Glenn Wong[]

Introduced in Ben 10 ArctiguanaBlitzwolferBuzzshockCannonboltDiamondheadDittoEvil Way Big (Destroy All Aliens)Eye GuyFour ArmsFrankenstrikeGhostfreakGrey MatterHeatblastRipjawsSnare-ohSpitterStinkflyUpchuckUpgradeWay BigWildmuttWildvineXLR8
Introduced in Alien Force Alien XBig ChillBrainstormChromastoneEcho EchoGoopHumungousaurJetrayLodestarNanomechRathSpidermonkeySwampfire
Introduced in Ultimate Alien AmpfibianArmodrilloChamalienClockworkEatleFasttrackJuryriggNRGShocksquatchTerraspinWater Hazard
Introduced in Omniverse AstrodactylAtomixBall WeevilBloxxBullfragCrashhopperFeedbackGravattackGutrotKickin HawkMole-StachePesky DustThe WorstToepickWalkatroutWhampire
Future Aliens SandboxShellheadSnakepit
Ultimate Aliens AlbedoArctiguanaBenBig ChillCannonboltEcho EchoGravattackHumungousaurRathSpidermonkeySwampfireWay BigWildmutt
Fusion Aliens Atomic-XBig ChuckCrashockerDiamond MatterFourmungousaurHeat JawsHumungoopsaurStink ArmsUprigg
Concept Fusion Aliens GravadactylXLRG
Competition Winners Alien Maker Contest WinnerMoyoInvinciblePortalerShadowmanStretcheleo
MAD ChromastoneFour ArmsHumungousaurJetrayNRGSwampfire
Total Access AntigraviteslaBob the BlobPlantapocalypse
Ben 10: Science Hero CaetSektoid TransformationShafarnianSteeler
Tim 10 BloxxFour ArmsHeatblastSkateasaurusUpchuckXLR8
Other Cartoon Network AlienEon (retconned)Evil Way Big (Cosmic Destruction)Fuel Run AlienGrendene AlienK-Zone AlienRobot AlienRocksSquidstrictor