Walkatrout is the Omnitrix's DNA sample of a Walkatrout from an unknown planet.


Walkatrout is a blue fish-like alien with a pair of legs. He has a belt around him in which the Omnitrix is located on. He is about the same height as Upchuck. 


  • In Outbreak, he made his debut when Driba and Blukic tried to fix the Omnitrix. He escaped from Liam when he was a Vaxasaurian.

Powers and AbilitiesEdit

Walkatrout's abilities, aside from a slippery body and underwater breathing are currently unknown.


  • Walkatrout is the first alien to be named after its species
  • Walkatrout is a combonation of the words walkabout and trout
  • According to Derrick, Walkatrout has little to no powers while the Omnitrix is malfunctioning. However, he, Pesky Dust, Molestache, and The Worst do have powers when the Omnitrix is functioning properly.
  • He was unlocked by Driba and Blukic, along with Pesky Dust, Molestache, and The Worst.


Ben 10 Aliens
Classic Original 10
DiamondheadFour ArmsGhostfreakGrey MatterHeatblastRipjawsStinkflyUpgradeWildmuttXLR8
Classic Additionals
ArticguanaBlitzwolferBuzzshockCannonboltDittoEye GuyFrankenstrikeSnare-OhUpchuckWay BigWildvine
Alien Force Original 10
Alien XBig ChillBrainstormChromastoneEcho EchoGoopHumungousaurJetraySpidermonkeySwampfire
Alien Force Additionals
Alien Swarm Aliens
Ultimate Alien Aliens
AmpFibianArmodrilloChamAlienClockworkEatleFasttrackJury RiggNRGTerraspinWater Hazard
Heroes United Aliens
Ultimate Alien Ultimates
BenBig ChillCannonboltEcho EchoHumungousaurSpidermonkeySwampfireWay BigWildmutt
Omniverse Aliens
AstrodactylAtomixBall WeevilBloxxBullfragCrashhopperFeedbackGravattackGutrotKickin HawkMole-StachePesky DustThe WorstToepickWalkatroutWhampire
Classic Fusion Aliens
Diamond MatterHeat JawsStink Arms
Omniverse Ultimates
Albedo/Grey MatterArticguanaGravattackRath
Classic Future Aliens
Biomnitrix Fusions
Atomic-XBig ChuckCrashockerFourmungousaurHumungoopsaurUpRigg
Classic Unseen Aliens
Decagon VreedleRocksSquidstrictorThriller WhaleVentrilosquid
Reboot Aliens
GaxOverflowShock Rock
Enhanced Aliens
CannonboltDiamondheadFour ArmsGrey MatterHeatblastOverflowStinkflyWildvineXLR8
Reboot Fusions
Amalgam BenGrey Arms
Non Canon Aliens
AntigraviteslaBob the BlobPlantapocalypsePortaler