Characters played by Debi Derryberry
Jimmy Neutron
Characters played by Rob Paulsen
Carl Wheezer
Dr. Pane
Characters played by Megan Cavanagh
Judy Neutron
Vox
Characters played by Carolyn Lawrence
Cindy Vortex
Characters played by Mark DeCarlo
Hugh Neutron
Characters played by Frank Welker
Goddard
Humphrey
Characters played by Jeffrey Garcia
Sheen Estevez
Characters played by Crystal Scales
Libby Folfax
Characters played by Andrea Martin
Ms. Fowl