Full Cast — The Adventures of Jimmy Neutron: Boy Genius (2002–2006)

Debi Derryberry

Jimmy Neutron (voice)

Jeffrey Garcia

Sheen Estevez (voice)

Rob Paulsen

Carl Wheezer (voice)

Carolyn Lawrence

Cindy Vortex (voice) / Cindy Vortex / Yuri (voice) / Cindy Vortex / Tina Sue (voice) / Cindy Vortex / Phantom #2 (voice)

Frank Welker

Goddard / Tubbs / Health Inspector / Special Vocal Effects (voice) / Goddard / Mr. Wuggles / Special Vocal Effects (voice) / Tubbs / Special Vocal Effects (voice) / Goddard / Tubbs / Special Vocal Effects (voice) / Goddard / Second Guard / Special Vocal Effects (voice) / Goddard +15 more

Mark DeCarlo

Hugh Neutron / Mr. Vortex (voice) / Hugh Neutron / Commercial Narrator (voice) / Hugh Neutron / General / Alien Man / Emergency System / Gleason Like Creature (voice) / Hugh Neutron / Eddie / Newt / Gomer (voice) / Hugh Neutron / Clerk (voice) / Hugh Neutron / Man (voice) / Hugh Neutron +13 more

Crystal Scales

Libby Folfax / Libby's Mom (voice) / Libby Folfax / Maggie (voice) / Libby Folfax / Chicks (voice) / Libby Folfax / Ozzie (voice) / Libby Folfax / Student #2 (voice) / Libby Folfax (voice) / Libby Folfax / Phantom #2 (voice) / Libby Folfax / Libby's Brother (voice) / Libby Folfax +3 more

Megan Cavanagh

Judy Neutron / Mrs. Pizza Monster (voice) / Judy Neutron / Old Lady Nusbaum (voice) / Judy Neutron / Masseuse / MaternoTron (voice) / Judy Neutron / Girl (voice) / Judy Neutron / Gretchen (voice) / Judy Neutron / Hilgo (voice) / Judy Neutron / Mrs. Vortex (voice) / Judy Neutron (voice) +19 more

Andrea Martin

Ms. Fowl / Lady (voice) / Ms. Fowl (voice)

Candi Milo

Nick Dean / Germy (voice) / Britney (voice) / Nick Dean / Terry (voice) / Nick Dean (voice) / Nick Dean / Britney (voice) / Female Fish (voice) / Nick Dean / Phantom #1 (voice) / Nick Dean / Ignishka (voice) / Nick Dean / Amber (voice)

Billy West

Blix (voice) / Sam Melnick / Lou / Reporter (voice) / Sam Melnick / Blix (voice) / Corky Shimatzu / Larry Llama (voice) / Sam Melnick / Lance (voice) / Sam Melnick / Corky Shimatzu / Kid (voice) / Corky Shimatzu (voice) / Sam Melnick / Corky Shimatzu (voice) / Sam Melnick (voice) +9 more

Phil LaMarr

Bolbi / TV Announcer (voice) / Bolbi (voice) / Bolbi / Pitz / Teenager (voice) / Bolbi / Toy Executive (voice)

Jim Cummings

Mayor (voice) / Ultra Lord (voice) / Mayor / Dog (voice) / Atila (voice) / Captain Betty / Mayor (voice) / Martian #3 (voice) / Popbot / Gortox / Goddard Speaking (voice)

Tom Kenny

Max / Wilderman / Mr. Moodini (voice) / Copbot / Interviewer (voice) / Nanobot #2 (voice) / WL3000 (voice)

Jeff Bennett

Positive Jimmy / Negative Jimmy / Macho Jimmy (voice) / Dr. Moist / Announcer (voice) / Travoltron/Barbarino (voice) / Travoltron / Newscaster / Salesman (voice)