Ben's New Aliens
- Electrohacker
- Scorch
- Rupture
- Raheatmonfly
- Hublockasaur
- Feedjaws
- Waymungoublast
- Spidergrade
- Hurricharge
- Phaseflame
- Stretchcommando
- Bouncablast
- Lifeswipe
- Slapforce
- Cy-X
- Starzio
- Cosmabit
- Squidturbo
- Slugspectra
- Omnisaurous
- Engerousite
- Sprectal
- Benxeralion
Main Characters
- Ben Tennyson
- Kevin Levin
- Gwen Tennyson
- Rook Blonko
- Zack Taluno (Season 2)
Recurring Characters
- Max Tennyson
- Verdona Tennyson
- Carl Tennyson
- Sandra Tennyson
- Julie Yamamoto
- Cooper Daniels
- Azmuth
- Professor Paradox
Villains
- Psyphon
- Forever Knights
- Aggregor
- Tennyson Destroyers
- Albedo