|Home World||Gilli-Perambulous Promenade|
|Powers and Abilities|
|Abilities|| Slippery Body|
|Voice Actor||Yuri Lowenthal|
Walkatrout is a small, blue fish-like alien, roughly the same height as Upchuck. He has stubby fins for arms, a shark-like dorsal fin, and a pair of thin, spindly legs jutting from his underside. He has a wide mouth with an underbite, and gills on his cheeks. He has bulging green eyes.
Walkatrout wears a green belt-like strap around his "waist" and back, with the Omnitrix symbol connecting the front.
Powers and Abilities
Walkatrout has a slippery body.
Walkatrout has gills and can breathe underwater, as shown in The Final Countdown when he flushed himself down a toilet.
- Walkatrout made his first appearance in Outbreak when Driba and Blukic tried to fix the Omnitrix. Walkatrout escaped from Liam.
- In Charm School, Walkatrout was used at the end of the episode and was disappointed.
- In Fight at the Museum, Walkatrout tried to escape the exhibit room, but failed.
- In It's a Mad, Mad, Mad Ben World: Part 1, Walkatrout came to Bellwood with Speedyquick's help.
- In The Final Countdown, Walkatrout got in the locked Plumber HQ through the toilet.
- In A New Dawn, Walkatrout appeared for a short time when Ben was cycling through his aliens.
Ben 10: Omniverse
- Outbreak (first appearance)
- Charm School (cameo)
- Fight at the Museum (intended alien was Humungousaur)
- It's a Mad, Mad, Mad Ben World: Part 1 (accidental transformation)
- The Final Countdown
- A New Dawn (cameo)
Naming and Translations
|Chinese||胖胖鱼||From 胖胖 (Pàng Pàng), fat, and 鱼 (Yú), fish|
|French||Truite-azur||From truite, trout, and azur, azure/blue|
|German||Wanderbarsch||From wander, to wander, and barsch, perch|
|Greek||Περιπατητική Πέστροφα||From περιπατητής, walker, and πέστροφα, trout|
|Hungarian||Halláb||From hal, fish, and láb, leg|
|Italian||GambaTrota||From gamba, leg, and trota, trout|
|Polish||Nogopstrąg||From noga, leg, and pstrąg, trout|
|Spanish (HA)||Walkatrout||From the original English name|
Walkatrout's name comes from "walk about" and "trout".
- Walkatrout was unlocked by Driba and Blukic, along with Pesky Dust, Mole-Stache, and The Worst, when they tried to fix the malfunctioning Omnitrix.
- Ben reveals Walkatrout's name in An American Benwolf in London.
- Driba was the one who technically named him.