List of Jimmy Neutron characters facts for kids
This is a list of fun characters from the American film Jimmy Neutron: Boy Genius, the animated TV show The Adventures of Jimmy Neutron, Boy Genius, and other stories.
Main Characters
Jimmy Neutron
Voiced by: Debi Derryberry
James Isaac Neutron is a super smart boy. He uses his amazing science skills and inventions to solve problems. But sometimes, he's the one who causes the problems in the first place! He is 10 years old at the start of the show and turns 12 by the end. His name is a nod to the famous scientist Isaac Newton.
Jimmy is the son of Judy and Hugh Neutron. Even though he's a genius, he's still a kid at heart. When things go wrong in his town, Retroville, Jimmy is usually the one who figures out how to fix them. When he's thinking hard, he often says "Gotta think..." and then, when he gets a great idea, he shouts "Brain blast!" This is his famous catchphrase. His best friends are Sheen Estevez, Carl Wheezer, and his robot dog, Goddard.
Jimmy and Cindy Vortex often argue, but later on, it's clear they secretly like each other a lot.
Jimmy usually wears a red T-shirt with a yellow atom symbol, blue jeans, and white sneakers. He has big, brown "anti-gravity" hair that sticks up. Because of his hair, classmates like Cindy give him funny nicknames such as "Whippy-Dip" and "Señor Fudge-Head."
Sheen Estevez
Voiced by: Jeffrey Garcia
Sheen Estevez is Jimmy's energetic and sometimes silly best friend. He is super obsessed with a superhero called "UltraLord." Sheen loves everything about UltraLord, including the TV shows, video games, and toys. He even has a website just for UltraLord! Sheen wears an UltraLord T-shirt almost all the time.
Sheen is known for being very hyper and having a short attention span. He loves superheroes and other "boy" topics like wrestling. He also has a big crush on Libby Folfax, and they become boyfriend and girlfriend by the end of the show.
Sheen later got his own spin-off show called Planet Sheen. In that show, he accidentally flies Jimmy's new rocket to a planet called Zeenu. Even though his show was short, in a future episode of The Adventures of Jimmy Neutron, Sheen is shown living back on Earth.
Carl Wheezer
Voiced by: Rob Paulsen
Carl Wheezer is one of Jimmy's best friends. He wears glasses and can be a bit clumsy. Carl and his parents have many allergies, sometimes even to strange things! He absolutely loves llamas and talks about them a lot, which is a funny running joke in the show.
Carl can be a bit scared sometimes. He also has a big crush on Jimmy's mom, Judy. His love for llamas started when he watched a show called "Llama Boy The Super Hero." He even joined (or maybe started) a fan club called The Llama Love Society.
Carl is afraid of lima beans, germs, and scary stories. He also has asthma. When he's tired, his mom sings him a special lullaby. Carl sometimes makes up funny rhymes when he talks.
Cindy Vortex
Voiced by: Carolyn Lawrence
Cynthia Aurora "Cindy" Vortex is a blonde-haired girl with green eyes. She usually wears a green striped shirt and her hair in a ponytail with cool bangs. She is very good at tai-chi. Her best friend is Libby. Cindy has a dog named Humphrey who is often with her.
Cindy is Jimmy Neutron's rival and also his love interest. They often compete, but in a 2006 episode called "Lady Sings the News," Jimmy and Cindy officially start dating. In a future episode, it's even hinted that they get married! Cindy is 12 years old in the first season.
Cindy's mom is from France and loves French food. She has high hopes for Cindy. Her dad is an accountant who appears in one episode.
Libby Folfax
Voiced by: Crystal Scales
Libby Folfax is Cindy's cool and wealthy best friend. Sheen has a big crush on her. Libby is African American and always has stylish black hair. At first, Libby doesn't like Jimmy and his friends much and usually sides with Cindy. But as the show goes on, Libby and Cindy become closer to Jimmy, Carl, and Sheen. Libby eventually becomes Sheen's girlfriend, which makes him very happy!
Libby loves popular music and dancing. In one episode, she learns that her ancestor was a fictional Egyptian queen named Hasabataslapya. Libby looks just like the queen!
Goddard
Voiced by: Frank Welker
Goddard is Jimmy Neutron's loyal robot dog, invented by Jimmy himself. He often goes with Jimmy on his adventures. Jimmy can call Goddard using his phone. Goddard can fly and even turn into a rocket-powered bicycle for Jimmy to ride!
Goddard helps Jimmy think by showing information on a screen hidden in his chest. He acts mostly like a normal dog but sometimes uses voice clips to "talk." Jimmy can tell Goddard to "play dead," which makes Goddard self-destruct into pieces. But don't worry, Goddard can instantly put himself back together! This is a funny running gag. Goddard was named after a famous American engineer, Robert H. Goddard.
Hugh Neutron
Voiced by: Mark DeCarlo
Hugh Neutron is Jimmy's father and Judy's husband. He is a kind and good-natured person, though he can be a bit silly and clueless. He often gives Jimmy advice. Hugh's favorite hobby is ducks! He loves collecting duck figurines and displaying them around the house. He also loves the pies his wife Judy bakes.
Judy Neutron
Voiced by: Megan Cavanagh
Judith "Judy" Neutron is Jimmy's mother and Hugh's wife. She is a housewife. She has red-brown hair styled in a 1950s look and green eyes. She usually wears a green dress with pink polka-dots and a pearl necklace. She is often strict and responsible with Jimmy.
Carl Wheezer has a big crush on Judy and loves her cookies!
Recurring Characters
Betty Quinlan
Voiced by Kath Soucie
Betty was Jimmy's first crush. She is kind to him and sometimes makes him do things he normally wouldn't. Betty knows that Jimmy and Cindy like each other.
Bolbi Stroganovsky
Voiced by Phil LaMarr
Bolbi is a unique exchange student from a place called Backhairistan. He often speaks in broken English, but he can act very well in a Shakespearean style! He wears traditional Eastern European clothes and has a funny accent. Bolbi joins Jimmy and his friends in a game show. He has a musical pet goat named Yurri.
Miss Winfred Fowl
Voiced by Andrea Martin
Miss Fowl is the teacher for Jimmy and his friends. She often makes squawking sounds like a chicken when she talks. In one episode, Jimmy accidentally turned her into a giant plant monster, but she was later shrunk back to normal.
Nick Dean
Voiced by: Candi Milo
Nicholas "Nick" Dean is the "cool" kid at school. He's often seen on a skateboard doing daring tricks. Nick is very popular with the girls because he's considered handsome and obsessed with styling his hair. He is from Brazilian American background. Nick sometimes breaks his leg while skateboarding and lets out a funny, high-pitched scream.
Nick is one of the richest kids in town and lives in a huge mansion with many rooms. He is also very strong.
Principal Willoughby
Voiced by Rob Paulsen
Principal Willoughby is the flamboyant principal at Lindbergh Elementary School. He loves Broadway shows and is very enthusiastic. He cares about his students and tries to get to know them all.
Sam Melvick
Voiced by Billy West
Sam Melvick is the grumpy owner of the Candy Bar, an ice cream shop where Jimmy and his friends often hang out. He frequently says "Yeah!" at the end of his sentences.
UltraLord
Voiced by Jim Cummings
UltraLord is the superhero that Sheen is completely obsessed with. He stars in his own TV series. Sheen has a huge collection of UltraLord action figures and gets upset if anyone calls them "Dolls." Sheen often wears an "Ultra-mask" that he got from an UltraLord impersonator.
Villains
Beautiful Gorgeous
Voiced by Wendie Malick
Beautiful Gorgeous is an evil villain and the daughter of Jimmy's enemy, Professor Calamitous. Her childhood dream was to put the little plastic tips on shoelaces! She appears in several episodes and is even a playable character in a video game.
Bueford Lee Stormshuckle
Voiced by Bill Farmer
Bueford is a warden who framed Jimmy for a bank robbery. He was later fired and arrested when Jimmy proved he was the real robber. Bueford then had to clean up trash and vowed to get revenge on Jimmy.
Dr. Sydney Orville Moist
Voiced by Jeff Bennett
Dr. Moist is a paranoid scientist who lives in a secret underwater lair. He makes evil henchmen out of algae. He worked with Professor Calamitous for a short time.
Evil Jimmy Neutron
Evil Jimmy was a clone Jimmy made to do his chores. Most of Jimmy's clones were frozen, but Evil Jimmy escaped. He later created an evil copy of Earth, making the real Earth disappear! The original Jimmy had to travel to the evil Earth to fix things.
Grandma Taters
Voiced by Edie McClurg
Grandma Taters seems like a sweet old lady, but she's actually a mean alien! She tried to hypnotize everyone in Retroville through her TV show, turning them into cheerful zombies.
The Junkman
Voiced by Charlie Adler
The Junkman is a dirty alien who buys and sells old, discarded items from all over the galaxy. He tried to recycle Brobot's parents for profit. He has a dog named Roxy, who Goddard has a crush on.
King Goobot V
Voiced by Patrick Stewart (film); S. Scott Bullock (series)
King Goobot is the Yolkian King. He kidnapped all the parents in Retroville and tried to sacrifice them to his giant chicken goddess, Poultra. Jimmy and the other kids stopped him.
Poultra
Poultra is a giant chicken-like monster that the Yolkians worship as a goddess. She appears in the movie and one TV episode. Her name sounds like the word "poultry" (which means chickens and other birds raised for food).
Professor Finbarr Calamitous
Voiced by Tim Curry
Professor Calamitous is Jimmy's main enemy and Beautiful Gorgeous's father. He was once a brilliant boy who could never finish anything, not even a sentence! The only thing he ever finished was a robot suit, but he forgot to put a bathroom in it. He still has trouble finishing his plans, even if he starts them. He has also been a villain in several video games where he fights Jimmy and other Nicktoon characters.
Calamitous sometimes uses disguises to trick Jimmy and his friends.
Shirley
Voiced by Jeff Garlin
Shirley is a villain created by Jimmy Neutron and Timmy Turner in The Jimmy Timmy Power Hour 3: The Jerkinators. They made him because they were bored of fighting easy villains and wanted a challenge. Shirley starts out polite but becomes evil when Jimmy and Timmy leave him at a mall.
Twonkie
Voiced by Frank Welker
Twonkies are small, fuzzy alien creatures. Jimmy found one on a comet, and it multiplied when he brought it to Earth. The baby Twonkies were kept as pets, but they turn into scary monsters when they hear music! Sheen's terrible singing voice is the only thing that can make them fall asleep. The Twonkies can combine into a huge monster that only Sheen's bad singing can stop. Jimmy sent most of them back to their comet, but one escaped and had more babies, so you can sometimes spot Twonkies hidden in the background of episodes!
Other Characters
April the Gorlock
Voiced by Alyssa Milano
April is a Gorlock, a green-skinned alien with tusks. She is very strong. April appeared in an episode where she had to team up with Jimmy. She gave Jimmy a "seal of trust" that looked like a kiss, which made Cindy jealous! Jimmy hoped for another kiss later. April's real name is Chee Aaaaaaaaaah Doik!, but she hates it.
Brobot
Voiced by Paul Greenberg
Brobot is a robot brother that Jimmy created because he felt lonely. Jimmy soon found Brobot annoying, but he still cared about him. Jimmy sent Brobot to live on the moon with his robot parents, Popbot and Mombot. Brobot and his parents returned when the Junkman kidnapped them.
Butch
Voiced by Rob Paulsen
Butch is a bully at school. He can be tough, but he might have a softer side. He gets confused by big words.
Cap'n Betty
Voiced by Jim Cummings
Cap'n Betty is an unusual sailor who knows about a monster. He appears in a few episodes and often makes hidden cameo appearances. He is a funny parody of a character from the movie Jaws.
Commander Baker
Voiced by Michael Clarke Duncan
Commander Baker is the leader of the Big Top Secret Organization. He appears in episodes where Jimmy helps with spy missions.
Corky Shimatzu
Voiced by Billy West
Corky Shimatzu is a famous Japanese TV producer. His catchphrase is "Super Fantastic!"
Eustace Strytch
Voiced by Rob Paulsen
Eustace Strytch is a rich, snobby boy and Jimmy's rival. He has a very annoying laugh.
Ernest Abercrombie
Voiced by Mark DeCarlo
Ernest Abercrombie is a military general. He sometimes doesn't know much about military situations. He once detained Jimmy and his friends when they got superhero powers and were mistaken for mutants.
Flippy
Flippy is Hugh's dummy. He was used as firewood in one episode to keep the Twonkies away.
Jet Fusion
Voiced by Christian Slater
Jet Fusion is a cool spy that Jimmy, Carl, and Sheen admire. He appears in episodes where Jimmy goes on spy adventures. His name is a play on James Bond.
Neutron Family
Aunt Amanda
Aunt Amanda is Jimmy's wealthy great-aunt. She didn't like Jimmy at first because she thought he caused too much trouble. They made up after Jimmy helped reveal his baby cousin Eddie's sneaky plan.
Aunt Kari Neutron
Voiced by Tress MacNeille
Aunt Kari is Jimmy's aunt, Hugh's sister, and Baby Eddie's mother. She was upset with Jimmy at first, thinking he caused problems. She was shocked when her baby started speaking in full sentences! She later apologized to Jimmy.
Baby Edward "Eddie" Neutron
Voiced by Mark DeCarlo
Baby Eddie is Jimmy's infant cousin, who is actually an evil genius! He had a sneaky plan to cause trouble for the family and get their money, trying to make it look like Jimmy did it. Eddie thinks he is much smarter than Jimmy.
Cousin Annabelle
Voiced by Tress MacNeille
Annabelle is Jimmy's cousin who is very paranoid and has many phobias.
Cousin Gomer
Gomer is Jimmy's cousin who is not very smart. He likes to play ping pong with his "spit ball."
Granny Neutron
Voiced by Phyllis Diller (season 1); Rose Marie (season four)
Granny Neutron is Hugh's mother and Jimmy's grandmother. Jimmy once accidentally turned her into a baby!
Newton "Newt"
Newt is Jimmy's uncle and Eddie's father. Like other family members, he was initially upset with Jimmy.
VOX
Voiced by Megan Cavanagh
VOX is Jimmy's computer. She is not heard as often in later seasons.
Mr. and Mrs. Wheezer
Both voiced by Rob Paulsen
Mr. and Mrs. Wheezer are Carl's parents. They are very overprotective and share many of Carl's allergies and worries about getting sick. They have some funny habits, like doing stretches and singing before bed.
Images for kids
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A robot friend.
