Jimmy Neutron Wiki

Liberty "Libby" Danielle Folfax is a major character in the Jimmy Neutron franchise.

Official Description

"Laid back Libby is Cindy's best friend and the voice of reason in their class. Libby has a mind of her own, but for some reason, it usually seems to echo Cindy's. When Cindy goes too far, though, Libby provides a much-needed reality check. She also has a voice that can shatter glass and send dogs running for cover."


Libby's original design

Libby's official 2D design (in her original form)

Libby is a 10-12-year old girl with brown eyes, darkish pink eyelids, and black hair.

In the movie, shorts, season one, and temporarily in Beach Party Mummy, Libby wore a turquoise dress with blue, green, and orange patterned rectangles on it, turquoise green knee-high socks, and black Mary-Jane shoes with a gold buckle. She also had a streak of her hair covering her right eye along with her hair in a high bun held by a hair tie that matches the pattern on her dress, and her eyelids were red.

In "Beach Party Mummy", Libby is given a new hairstyle, dreadlocks as part of Jimmy's plan to make Libby look like her ancestor, Queen Hasabataslapya and put the mummies to sleep for 10 trillion more years. Libby likes the new hairstyle so much that she decides to keep it. In the next episode, Libby gains new clothes; a striped pink fading shirt, blue jeans, brown shoes, and a pink choker collar.

She wore a purple shirt with white curly designs, white pants, and white shoes in Lady Sings the News and in "Nightmare In Retroville" for her fashion model Halloween costume and while she was a werewolf.

She had seen in her underwear in "Patrick the Snowman." It is two pieces and consists of a similar color scheme to her dress.

In the N Men, as Invisible Sister, she wears a blue bodysuit with matching boots and finger less gloves with a silver lining and a silver belt.

In Crouching Jimmy, Hidden Sheen, she wore a sparkly red shirt, with a purple stripe on the bottom, black flared jeans and white shoes. She also had blue eye shadow, red lipstick, and a beauty mark on her left cheek.


Not much is known about Libby's family, but she is known to have a father and mother. In "Beach Party Mummy," she discovers that she is related to Queen Hasabataslapya, and changes her hairstyle to the one her ancestor wore in her portrait. She is a vegetarian.

Along with Cindy, Libby won the first-place trophy for River stomp dancing at the school contest in "Battle of the Band;" Jimmy, Carl, and Sheen almost beat the girls with their electronic rock music guitars and drums, but at the last minute, Carl and Sheen destroyed their own instruments in a jealous quarrel. The boys ended up with was an eighth-place trophy after Carl did his giant snot bubble trick.

In "Crouching Jimmy, Hidden Sheen", Yoo-Yee kidnaps her so that he can take Sheen's place as the Chosen One in Shangri-Llama. Sheen goes to rescue her and defeats him after Libby admits to being his girlfriend. Libby also realizes that Sheen cares about her more than Ultra Lord. It also revealed that she cares about him more than music.

In "The N-Men", Libby gains the superpower of invisibility, based on how she was putting on vanishing cream when she and the group were exposed to the Van Patten Radiation Belt. Libby calls herself "Invisible Sister". She learned in the military station that she also had the ability to generate a force field and create a pad to float herself in midair.

In The League of Villains, Jimmy, Carl, Sheen, Cindy, and Libby's superpowers are mixed up, thanks to Carl's incompetence. Libby is the one who had ended up with Carl's superpower, Burp Boy. This made her gain the ability to make gigantic burps enough to make anyone go flying.


In the shorts, movie, and early episodes, Libby was more of a flat character, but as the series progressed, she began to stand out from the rest of the gang and evolved into the group's most sensible and levelheaded member.

Libby's main favorite genres of music are hip-hop, R&B, and funk. Two of her science experiments involved music: one was comparing music of the Baroque period to today's music; and plants' responses to musical stimuli (classical R&B vs yodelin' to the Oldies).

When she experiences music withdrawal, she faints and goes crazy. She also loves electronic gadgets and being stylish. In the first and second season, she doesn't appear in the title logo. However, when she becomes more involved in the show, she is added to the logo in the third season. Unlike Jimmy's other friends, Libby is shown to be a great student but is not a genius like Jimmy and Cindy. Libby also is candid and cannot lie at all, which often gives complications to Jimmy's plans or keeping secrets. However, because of this, she is more open about her feelings than Cindy is. Although she does lie in A Beautiful Mine, Jimmy for President and Attack of the Twonkies, which the gang is understandably shocked by.

Libby's favorite band is Graystar, whom she sometimes asks to play at Retroville. She also was revealed to have piano playing skills.

Libby has full knowledge about Jimmy and Cindy's relationship with each other, as Cindy does not want to express her feelings to Libby about it and stammers each time Libby mentions it. Although, Libby sometimes joins Cindy in teasing Jimmy and can be apathetic to their fake fighting. Libby returns Sheen's interest in herself, but not when Sheen is not annoying her with his overbearing mentions of Ultra Lord and occasional flirting. Sometimes, Libby denies that she likes Sheen, even though it hinted that Libby might be a fan of Ultra Lord as well.

In "The Tomorrow Boys", Libby had become the evil dictator of Retroville after Carl accidentally got the Megalomanium to her birthday party out of confusion by the perfume and the Megalomania. When she opened the present, she became mad with power, thus making her the evil dictator of Retroville. When Jimmy, Carl, Sheen, and Goddard saved the future, she got mad at them for destroying her gifts and ruining her party. When Sheen explains everything and apologizes, she forgives him and realizes how much Sheen cares about her.


Cindy Vortex

Cindy, Brittany, and Libby hanging out together.

Cindy Libby are best friends. Libby is always seen with them, whether it's hanging out, having fun or going shopping. They even go to each other's homes for playing.

Libby is smart enough to know that even some of Cindy's own absurd antics can go a little too far, earning a snide remark or a slight hint of disappointment from Libby (making her a bit of a foil), especially since she is well-aware of Cindy and Jimmy's feelings towards each other. Cindy is also aware that Libby likes Sheen.

In the shorts, the movie and season one, Libby was more of a sidekick to Cindy and didn't have much of a role in the franchise, but since then, she's become more of her own person and the gang's voice of reason.

Sheen Estevez

Libby and Sheen weren't quite close friends at the beginning, however, Libby does encourage and compliment Sheen when he comes up with a good idea. For instance, in Beach Party Mummy, when Sheen distracted Principal Willoughby by telling him that new school tanning salon had been opened, Libby smiled and responded to Sheen's idea with "Great thinking Sheen!" The two were even seen dancing alongside each other in the same episode. Libby also always sticks up for Sheen whenever somebody yells at him or mocks him. A good example is at a scene in the Yolkian dungeons in the movie.

Their friendship eventually blossomed into a relationship during the episode of Love Potion 976/J, where Sheen was accidentally exposed to Jimmy's love potion and suddenly fell in love with Libby. After the effects were reversed, Sheen still liked her and Libby showed him that she did like him back. From then on, Sheen has shown interest in her and is always looking after her, but it is hinted in previous episodes that he's always liked her. While Libby doesn't always approve of the nicknames which Sheen makes up, she returns his feelings and thinks he's cute and funny. In Crouching Jimmy, Hidden Sheen, she finally becomes Sheen's girlfriend after defeating Yoo Yee. We also learn that Sheen actually cares about her more than Ultra Lord and that she cares about him more than music. Sometimes though, Libby denies liking Sheen out of embarrassment.

In Planet Sheen, Sheen gets a new love interest and his and Libby's relationship is abandoned because of it. It is unknown if they were still together at that point, or if Planet Sheen is even canon.

Jimmy Neutron

Libby acts somewhat sisterly to Jimmy and is always trying to get him to come out of his shell. Jimmy likes Libby because she's calm, mellow and sensible.


In Crouching Jimmy, Hidden Sheen, Yoo-Yee thought Libby was Sheen's girlfriend, so he tried to kidnap her to urge Sheen coming to Shangri-Llama and fight him. He tried to be nice to Libby and even gave his sister's room to Libby, but she didn't like it because her CD collection was totally beat and hated the wallpaper. However, Libby did like Yoo-Yee's sister's jewelry. She was also angry at Yoo Yee for senselessly beating up Sheen, which gave Sheen the proper motivation and made him defeat Yoo Yee.



  • Libby is one of two females in the franchise to burp, the other one is Judy.
  • Libby doesn't appear in Time is Money, My Son, The Hamster, Crime Sheen Investigation, Aaughh!! Wildreness!!, Sleepless in Retroville, Maternotron Knows Best, Send In The Clones, The Feud, The Junkman Cometh, The Mighty Wheezers, Fundenonium!, Clash of the Cousins, The Evil Beneath, Carl Wheezer: Boy Genuis, Who Frammed Jimmy Neutron?, El Magnifico, and Best In Show
  • She is eleven years old (twelve starting with "The Tomorrow Boys").
  • Libby is the second protagonist in the franchise to become evil. The first one was Sheen.
  • Libby & Sheen are 2 of the protagonists to become evil.
  • It is unknown why Sheen doesn't mention her or bring her up in Planet Sheen, or if they were even still dating at that point.
  • Libby's bad future counterpart looks more like her original design than her current one.
  • While Libby loves music, she thought Yoo-Yee's sister's CD collection was totally beat.
  • Libby has a little brother (who's name has not been mentioned and looks were unseen in the series) seen at the beginning of "Make Room for Daddy-O" as the legs in the saw the lady in half trick, and it is stated at the end credits.
  • Sometimes it is hinted that Libby may like Ultra Lord too.
  • She is a vegetarian.
  • Her birthday is December 12, the same day as Frank Sinatra's, so she's a Sagittarius.
  • Even though Libby cannot lie, she does uncharacteristically lie in A Beautiful Mine, Attack of the Twonkies and Jimmy for President, which her friends get understandably shocked by.
  • In The Incredible Shrinking Town, it is revealed she doesn't care about Jimmy endangering the town anymore despite her saying, "At least we had an exciting childhood".
  • Originally, Libby and Nick were going to be cousins.
  • Libby is the only African-American main character on the show.
  • Libby is made in a very similar way to Bessy from O Entertainment's other Nicktoon franchise, Barnyard.


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Libby Folfax image gallery

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Main Characters: Jimmy Neutron | Carl Wheezer | Sheen Estevez | Cindy Vortex | Libby Folfax | Goddard | Hugh Neutron | Judy Neutron |

Recurring Characters: Nick Dean | Ms. Fowl | Sam Melvick | Ms. Fowl | Principal Willoughby | Brittany Tenelli | Butch Pakovski | Betty Quinlan | Bolbi Stroganovsky | Brobot (character) |

Main Villains: King Goobot V | Ooblar | Professor Calamitous | Eustace Strych | Beautiful Gorgeous | Meldar Prime | Zix, Travoltron and Tee |

Secondary Villains: The Nanobots | Evil Jimmy | The Junkman | Baby Eddie | Grandma Taters | Sydney Moist |

Minor and One-Shot Characters: Ultra Lord | April the Gorlock | Captain Betty | Commander Baker | Corky Shimatzu | General Abercrombie | Flippy | Jet Fusion | Amanda Neutron | Kari Neutron | Anabelle Neutron | Gomer Neutron | Granny Neutron | Newt Neutron | VOX | Ebenezer Wheezer | Martha Wheezer |