Full cast of The Adventures of Jimmy Neutron: Boy Genius

Debi Derryberry

Jimmy Neutron (voice)

76 episodes

Jeffrey Garcia

Sheen Estevez (voice)

76 episodes

Rob Paulsen

Carl Wheezer (voice)

76 episodes

Carolyn Lawrence

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

61 episodes

Frank Welker

Goddard / Special Vocal Effects (voice) / Goddard / Phantom #4 / Special Vocal Effects (voice) / Special Vocal Effects (voice) / Goddard / Tubbs / Special Vocal Effects (voice) / Goddard / Second Guard / Special Vocal Effects (voice) / Goddard / Mr. Strych / Special Vocal Effects (voice) / Tubbs / Special Vocal Effects (voice) / Goddard / Mr. Wuggles / Special Vocal Effects (voice) / Goddard / Wendel / Special Vocal Effects (voice) / Goddard / Tubbs / Father / Special Vocal Effects (voice) / Goddard / Tubbs / Health Inspector / Special Vocal Effects (voice)

58 episodes

Mark DeCarlo

Hugh Neutron (voice) / Hugh Neutron / General / Alien Man / Emergency System / Gleason Like Creature (voice) / Hugh Neutron / Commercial Narrator (voice) / Hugh Neutron / Man (voice) / Hugh Neutron / Announcer (voice) / Hugh Neutron / Clerk (voice) / Hugh Neutron / Instructor (voice) / Hugh Neutron / Jenson / Skeezicks (voice) / Hugh Neutron / Flippy (voice) / Hugh Neutron / Eddie / Newt / Gomer (voice) / Hugh Neutron / Octopus Man (voice) / Hugh Neutron / TV Announcer (voice) / Hugh Neutron / Mr. Vortex (voice)

57 episodes

Crystal Scales

Libby Folfax (voice) / Libby Folfax / Chuck (voice) / Libby Folfax / Ike (voice) / Libby Folfax / Maggie (voice) / Libby Folfax / Libby's Mom (voice) / Libby Folfax / Ozzie (voice) / Libby Folfax / Chicks (voice) / Libby Folfax / Phantom #2 (voice) / Libby Folfax / Student #2 (voice) / Libby Folfax / Libby's Brother (voice)

56 episodes

Megan Cavanagh

Judy Neutron (voice) / Judy Neutron / Woman (voice) / Judy Neutron / Mrs. Vortex (voice) / Judy Neutron / Crowd Member #2 (voice) / Vox (voice) / Mrs. Vortex / Vox (voice) / Judy Neutron / Old Lady Nusbaum (voice) / Judy Neutron / Hilgo (voice) / Judy Neutron / Girl (voice) / Judy Neutron / Mrs. Vortex / Aunt Suzy (voice) / Judy Neutron / Phantom #3 (voice) / Judy Neutron / Vox (voice) / Judy Neutron / Lunch Lady (voice) / Judy Neutron / Mrs. Pizza Monster (voice) / Judy Neutron / Mrs. Moran (voice) / Judy Neutron / Masseuse / MaternoTron (voice) / Martian #2 (voice) / Judy Neutron / Gretchen (voice)

50 episodes

Andrea Martin

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

41 episodes

Candi Milo

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

24 episodes

Billy West

Sam Melnick (voice) / Sam Melnick / Corky Shimatzu (voice) / Sam Melnick / Blix (voice) / Corky Shimatzu / Larry Llama (voice) / Blix (voice) / Sam Melnick / Man (voice) / Sam Melnick / Lou / Reporter (voice) / Sam Melnick / Corky Shimatzu / Lars (voice) / TV Newscaster / Lucky Joe (voice) / Corky Shimatzu (voice) / Sam Melnick / Pilot (voice) / Sam Melnick / Lance (voice) / Sam Melnick / Corky Shimatzu / Kid (voice)

21 episodes

Phil LaMarr

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

10 episodes

Jim Cummings

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

8 episodes

Tom Kenny

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

6 episodes

Jeff Bennett

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

5 episodes