Voices
- Jess Harnell as Shuff Valk Zaptor Burnard Meltus
- David P. Smith as Zorch Volectro Krader
- Tom Kenny as Flain Seismo Teslo
- Fred Tatasciore as Slumbo jawg Major Nixels Nixels
- Phil LaMarr as Chomly Flurr Tentro
- Billy West as Balk Gobba Lunk
- Carlos Alazraqui as Mesmo Torts
- Bumper Robinson as Footi Glurt Wizwuz
- Brian Stepanek as Magnifo
- Matthew W. Taylor as Glomp Hoogi
- Rodger Bumpass as Flamzer Naut Major Nixels
- Dave Fennoy as Globert Boogly
- Justin Grollman as Nurp
- Phil Hayes as Rokit King Nixels
- Andrew Kishino as Niksput
- Sam Riegel as Vampos
Additional Voices
- Kirk Baily
- Jack Blessing
- Ranjani Brow
- David Cowgill
- Caitlin Cutt
- Elisa Gabrielli
- Jackie Gonneau
- Wendy Hoffmann
- Scott Menville
- Renne Robert
- Andre Sogliuzzo
- Hans Tester