Laura was originally approached by Jeremie due to her extensive knowledge of programming and quantum physics, and was intended to be a one-time confidant to the team. However, after Laura discovered the true nature of their operation, she instead programmed immunity for herself from the memory-wiping effects of the returns to the past. This left the group with little choice but to adopt her into their ranks.
Laura's stern nature caused strife amongst the group as she often invaded their privacy and challenged their morals. During the events of the episode Mutiny, she finally went against a key group decision, nearly dooming the team and ensuring loss of both her membership and her memories of the group's existence.
She is very interested and addicted to computer games and virtual reality. Laura has said that she's not so much into the actual computer game, but the design and layout form behind it. She is clever, curious and ambitious. Her intelligence is perhaps on the same level as Jeremie and Aelita's, possibly even higher. She spends her time at the library as she likes studying and working a lot. She is quite a bookworm and studious, educational teenager.
Her interactions with the group as time goes on, however, depicts her in a darker light. Being a late entry into the group, along with the deceptive nature of her inclusion, Laura lacks a connection to the rest of the protagonists and the nature of their conflict with X.A.N.A., and she and Aelita despise one another, with Laura even going so far as to taunt Aelita about her deceased father. She also had taken an interest in Tyron's research, despite his enigmatic and shadowy nature.
However, Laura did at the very least, acknowledge that X.A.N.A. was a threat, despite the weakened nature of the virus. She was not willing to let the Lyoko Warriors risk the safety of the world just to find Aelita's mother, and went as far as to manipulate William in order to see X.A.N.A. destroyed. However, it was at this point that her callous nature caught up to her, causing her preemptive attempt to destroy the Cortex to fail and resulted in her expulsion from the group. With her memories erased, it is unknown how she would interact with the Lyoko Warriors if the possibility ever came up again.
Code Lyoko Evolution (Season 5)
Laura made her first appearance during math class in Mrs. Einstein, where she solved an equation that Jeremie could not, which humiliated him. She later met Jeremie and the others at the courtyard and tried to befriend them. Odd teased Jeremie about Laura possibly having a romantic crush on Jeremie, judging by the way she talked to him twice, annoying Aelita. Later on, she followed William to the factory and waited for his return, after which she used the elevator to get into the lab. There she helped Jeremie out with the labs' machinery.
When Aelita was devirtualized, she was very annoyed to see Laura at the lab. After a successful mission at Lyoko, the team tried to decide whether to accept her into the team or not. However, Aelita refused to let her into the group and launched a return to the past just before they could properly vote. Back at the class, Jeremie and Aelita discussed her with Aelita, insisting that she just did not trust Laura at all. When their teacher called for a student to solve the math equation like the previous day, Aelita urged Jeremie to solve the equation this time, knowing in advance, despite Jeremie's insistence it wasn't fair since he knew. Jeremie reluctantly does so and solves the math problem, much to Laura's visible disappointment.
In Virus, she was called upon again by the Lyoko Warriors to help Jeremie out with his virus program designed to destroy Cortex. Surprisingly, she manages to understand everything Jeremie is working on at first glance. During her time in the laboratory however, she manages to permanently change the boundaries of the return to the past program without Jeremie's knowledge to include herself to be unaffected by the memory loss side effects. After the time reversion, she finds her way back to the lab with little trouble, and after the disastrous results at the end of the episode, the Lyoko Warriors have temporarily added her to the group. However, they do not plan to share any details about the missions and plan to keep her as uninformed as possible.
In Rendezvous, Jeremie was worried when Aelita took off and leaves Laura in charge of the Supercomputer while the group is on a mission. Meanwhile, X.A.N.A. had launched an attack but Laura manages to figure out X.A.N.A.'s plan. X.A.N.A. was using a specter of Aelita's mother to steal back his source codes so she had Odd and Yumi to deactivate the towers on Lyoko. But before they did, meanwhile, Aelita was struggling with the specter but suddenly it disappeared in her arms due to the tower deactivating which was partially Laura's fault. Aelita thanks Laura for saving her life.
In Chaos at Kadic, Laura helped the team again, but her father heard about a virus that has infected Kadic's computer system and he was about to enroll Laura into a different school because of it. In order to prevent it, Laura took him to the factory and showed the supercomputer to him. The others successfully deactivated the tower and launched the time reversion. After that, they tried to decide whether or not to keep Laura in the team. Thinking that Laura by then knew too much and could really cause trouble for the team if they rejected her, they decided to keep her, but under strict surveillance.
She is next seen in Confusion, where towers were being activated and deactivated randomly and, as the group goes to the lab, Laura followed behind them and asked what was going on. Aelita clearly doesn't want her attendance, but Jeremie allows it as he saw it as an unusual case. When Laura asks about Franz Hopper after hearing he is Aelita's father, Aelita refuses to answer her. This leading Laura to leave the Factory early to go get her own answers. Aelita eventually checks up on her to see what she was doing and catches Laura doing research on Franz after looking at her tablet. She then leaves when seeing Laura coming back, but she is soon confronted by Laura, who saw her look at her tablet. Laura tells Aelita that she knows Franz built the Supercomputer as well as Lyoko. At first, Aelita tries to deny everything, but Laura asks why he suddenly disappeared and if he abandoned her and chose his research over his daughter. Aelita states that her father didn't abandon her, but actually sacrificed himself for her and remarks if Laura's father would do the same, before she returns to the lab.
In An Assured Professional Future, Graven, an agent sent by Tyron, tries to get Jeremie to reveal his connection to the supercomputer and Lyoko by admitting his unusually profound knowledge and intelligence of quantum physics. However when Jeremie denies knowing anything about the subject, Graven moves on to Laura instead. Laura accidentally lets Graven of her knowledge of quantum physics, leading him to believe that she must indeed know about Lyoko. He then shows her holographic images of Aelita, Odd, Yumi, Ulrich and William in their virtual Avatars, asking her if she recognizes them. She denies knowing anything about them, but Aelita comes in and tells her that Tyron found the Supercomputer, and that she must come immediately. Graven forces the girls to take him to the lab. Luckily, Ulrich disposes of a tracking device Tyron had put on them and Jeremie launches a return to the past. At the beginning of the day again, Graven gets a phone call confirming that they lost Lyoko's signal and to abort the mission. Laura pulls the scientific institution's card out of her bag, still clearly interested in the idea.
In Obstinacy, Laura was working with Jeremy on the virus to destroy both the Cortex and X.A.N.A. when Aelita knocked on the door. She smiled smugly when she left and denied that there was anyone at the door. Later, Laura stayed in with Jeremy and watched as Willam, Yumi, and Aelita traveled to the Cortex. She was irritated of Aelita's stubbornness to continue the mission no matter how few. However, like the others, she was shocked to hear that Aelita's own mother seemed to be working with Tyron. She had asked why they could not inject the virus, and Yumi said that without the supercomputer, Aelita would never find her beloved mother.
In Mutiny, Laura rebels against Jeremie and decides to implement the virus before they find Anthea. She sends William into the Cortex to do so, but he ends up being possessed by the Scyphozoa. At first, Jeremie believes she could also have handed the virus over to X.A.N.A., but luckily Laura wasn't going to give it to William until he reached the core, which he didn't end up doing. William was later saved. Because of her colossal mistake, the group decided that Laura should be permanently excluded and dismissed from the group and with her memory erased. She can no longer remember anything to do with the factory, the lab or Lyoko.
She makes her final appearance in Temporal Paradox. Even if her memories of the factory, the lab, Lyoko and X.A.N.A. were erased at the end of her previous appearance for her colossal mistake, she still kept the card that she got from Tyron's agent. She called Tyron to get enrolled in his school, but her amount of knowledge about quantum science isn't enough for it. She sees pictures of her former friends' virtual Lyoko avatars and mentions to Tyron that they resemble Jeremie's friends. After Tyron had hung up, Laura appeared upset and offended.
- Mrs. Einstein
- Chaos at Kadic
- Friday the 13th
- An Assured Professional Future
- False Pretenses
- Jeremy's Blues (cameo; no lines)
- Temporal Paradox
- Odd describes Laura as a female alter-ego of Jeremie; as they both have blonde hair, are extremely smart and have extensive knowledge in highly complex scientific fields.
- She may have been inspired by Eva Skinner, a young girl from the novels who was secretly working for X.A.N.A.. It should be noted that both of them share similar characteristics, in that both of them are blonde, have a surprising amount of knowledge about technology, and are new members of the group. However, Eva's knowledge came from the fact that X.A.N.A. was controlling her, and ultimately ended up being fairly helpful to the protagonists after being freed from the program's control, while Laura only caused tension in the group and ended up being booted off the team.
- In the Polish version of Evolution, she is voiced by Dominika Sell.
- Laura shares a last name with Theo Gauthier, however it is confirmed the two are not related.
- In the opening instrumental theme, Laura is seen as a main character, alongside Jim.
|Jeremie Belpois | Aelita Schaeffer | Odd Della Robbia | Yumi Ishiyama | Ulrich Stern | William Dunbar|
|Sissi | Jim Morales | Suzanne Hertz | Anthea Schaeffer | Mr. Delmas | Laura Gauthier | Franz Hopper|
|Kiwi | Herb Pichon | Nicholas Poliakoff | Amelia "Milly" Solovieff | Tamiya Diop | Hiroki Ishiyama | Johnny | Takeo and Akiko Ishiyama|
|X.A.N.A. | Monsters|
|Professor Tyron | Ninjas | X.A.N.A. William|
|Jean-Baptiste Pujol | Theo Gauthier | Emily LeDuc | Taelia | Samantha Knight | Samantha Suarez | Heidi Klinger | Mathias Burrel | Magali de Vasseur | Claire Girard | Brynja Heringsdötir | Patrick Belpois | Romain Le Goff|
|X.A.N.A. Aelita | X.A.N.A. Odd | X.A.N.A. Yumi | X.A.N.A. Ulrich | X.A.N.A. Franz Hopper | X.A.N.A. Anthea Schaeffer | Jeremie Clone | Aelita Clone | William Clone | Subdigitals|