I.N.K. Invisible Network Of Kids (known in French as Mission Invisible) is an animated series directed by Prakash Topsy, produced by Samka Productions (France) and broadcaster France 3 and distributed in Europe by France-based PGS Entertainment and in the Asia-Pacific regions by Mango Distribution. The show was devised by Claire Underwood and David Hodgson whose studio Pesky also made the multi award-winning series The Amazing Adrenalini Brothers. It is based around the adventures of a secret organisation of children and adventures. The voice acting cast was led by animation voice director and voice actor, Matthew Géczy, the voice behind the Code Lyoko character, Odd Della Robbia.
Pinkerton School is a boarding school with two teachers. One of the teachers, Mr. Soper, is nice, and the other, Ms. Macbeth, is evil and is constantly trying to enslave the children of the school. However, four of the students act as a secret organisation known as "The Invisible Network of Kids", or "I.N.K." for short. I.N.K's mission is to thwart all of Ms. Macbeth's evil plans. 
Voiced by Barbara Scaff. He is the founder of the network. He always keeps his hair stylish and tries to keep himself handsome. He describes himself as full of beauty. In the episode "The New Student" it is revealed that Vin is an orphan. In "Voodoo Shampoo" and "The Outcast", it is revealed he may have feelings for Zero. In the episode "Lovestruck Stinkbomb", Vin and Zero are accused of being in love but they do not confirm anything. In episode "Ghost Of Pinkerton", during the Romeo and Juliet play, Vin and Zero share a kiss, in the episode "Back to the Past", at the end, he can be seen with hearts in his eyes as he looks at Zero, implying that he may have feelings for her. Although Zero's feeling are not as confirmed as Vin's, throughout the series they are shown to have the strongest relationship but also the one with the most 'awkward' moments. Though there were also moments wherein Vin has shown an attraction towards Trixie as well, this can be best observed in "The Sleeper Agent" where he was amazed by Trixie's party dress. However, this may easily be dismissed since Trixie was indeed much more attractive and appealing in that dress (this can be said because even Burt had been distracted by her charm) with Vin being a normal guy and all, it would only be natural to get stunned by a beautiful girl - let alone someone he thinks of as just his friend. Therefore we cannot conclude that he has in fact developed or ever had any genuine feelings for Trixie aside from that of care for a comrade. Vin also likes to annoy Burt the bully.
Voiced by Lee Delong. She is the rebel who protects the gang and stops Miss Macbeth's evil plans often. She is the main action person during the missions and an excellent fighter. If the team are in trouble somewhere else, Zero will use Newton's devices and Trixie's brains to help the team. She describes herself as the big hearted rebel. It was revealed that she ran away from her parents in "Mice and Kids". In "Voodoo Shampoo", it was also revealed that she has an embarrassing birthmark on her shoulder, shaped as a pink pony. She also is shown to have a very sketchy and bad relationship with her father, reasons for this are currently unknown but it's implied most of the time that this is because she ran away from home. There has also been no mention of her mother though, it has been thought a lot by others that this is due to her possible death or abandonment of Zero. In the episode "Lovestruck Stinkbomb", many accuse her of being in love with Vin, though she does not confirm it. In the episode "Ghost Of Pinkerton" during the Romeo and Juliet play, Zero and Vin share a kiss. In the episode "Back to the Past", it is believed to be that she was supposed to admit that she does in fact "love" Vin, however, she was cut off as she had vanished before she could finish her sentence. Although 'her' feelings towards him are not as confirmed as Vin's, throughout the series they are shown to have the strongest relationship but also the one with the most 'awkward' moments.
Voiced by Jodi Forrest. Trixie is very organized and guides Vin, Zero, and Newton's missions from headquarters. She uses a red pen, which allows her to communicate with the other members of I.N.K. and coordinate them. She describes herself as very gifted. She is also quite talented at Chess as shown in the episode "The Queen's Game" sometimes Trixie has quarrals with Zero shown in the episode "Ego Ergo".
Voiced by Barbara Scaff. Newton is the gadget guy who invents devices to help the team, often used to stop Miss Macbeth. If the team needs something to use urgently, Newton will help the team by developing gadgets with his useful tools. As the youngest child in Pinkerton (except little Fred), he is a bit of a perfectionist when it comes to studies and aims to get a 100% average. He can sometimes be clumsy like his father, who is a scientist as shown in the episode "Saving Agent Newton". In the episode "Lovestruck Stinkbomb", he wishes to be in love with Trixie and shares a kiss with her, which disgusts him and makes him change his mind. He describes himself as the inventor.
Miss Sadie Macbeth
Voiced by Sharon Mann. Miss Sadie Macbeth is the antagonist of the series. She frequently devises mischievous plans to make her students quiet and obedient. She is a teacher in the Pinkerton School who spends her time hatching evil schemes to take over the Pinkerton. She has a pet goldfish (Vagner), who she considers to be her evil companion. All pupils outside of I.N.K. are unaware of her malevolence. She describes herself as the evil villain. Interestingly enough, she also holds the functions of a "mascot" for the show, insofar as she is the one making most of the musical parts (in every episode she is singing a song about her evil scheme) and stars as a more crudely drawn cartoon character in the "Science Club" sequences at the end of every episode. While being a villain, her goofiness and the randomness of her actions make her the comic relief of the show as well. Miss Macbeth, although quite stupid, invents many clever weapons she uses against the kids of Pinkerton. The Invisible Network of Kids has managed to destroy all of them. In "Investigation at Pinkerton", it was revealed that Macbeth was a famous children's singer named Valentine Begonia 30 years ago.
Mr. Cosmo Soper
Voiced by Matthew Geczy. He is the principal of Pinkerton School and has no idea about I.N.K. or the evil schemes of Miss Macbeth. He is very popular with the pupils at the school and is also obsessed with butterflies, and Miss Macbeth sometimes takes advantage of this. He is fair and kind and discourages any violence. It is hinted in "The Truth, The Whole Truth" that he might know who Vin's parents are but he doesn't want to tell him.
He is the teacher's pet of Miss Macbeth and often a victim of Burt's bullying. He wears a green t-shirt and has black hair. He is voiced by Matthew Géczy.
Kathy is the smartest girl in the class. She sometimes sits next to Trixie in class and she has a crush on Vin. She describes herself as the smartest kid in Pinkerton School.
She is the typical "blond" and always tries to look pretty. She doesn't like it when Burt bullies others and she always receives love notes from him. She likes everything that is pink and wants everything. She describes herself as the prettiest girl in Pinkerton.
Burt is known as a bully at Pinkerton's school grounds and his main target is Daryl or Vin, is the antagonist. He likes Van. In "Burt the Brute", I.N.K sends a love message to Van pretending that it's from Burt, who also has a secret stash of love letters.
Hector is the smart one when he was part of the Shadow Avengers in "Ego Ergo". He is friends with Burt and Fred and teased Zero in "The Outcast". He is voiced by Sharon Mann.
Little Fred is a very small and scared boy. In "Pinkertomb", it is revealed he is scared of the Big Bad Wolf. He is allergic to butterflies in "Burt the Brute".
Ben is the one who eats lot. "In The Truth, The Whole Truth", it is revealed that Ben loves Trixie but then gets embarrassed about it. And in "The Sleeper Agent", Ben wets his pants when he sees Trixie.
Sam wears a pink shirt and blue shorts. He is seen in the group with Hector and is seen as the leader of the group.
Vagner the Fish belongs to Miss Macbeth. He appears in each episode of I.N.K. Macbeth usually talks to Vagner, but Vagner just pops up by himself. Vagner is there to usually entertain you if you are bored while Macbeth is talking. In "Mission Forgotten", it was revealed that every time Vagner swirls in a circle, he forgets everything. In "The Butterfly Effect", Vagner was the password to Macbeth's safe.
Pervy is a character from "The New Student". She is revealed to have a crush on a boy called Kenny, three quarters of the way into this episode, but ever since they got separated, Pervy's personality changed.
Charlene is a chess competitor that Trixie poses as in "The Queen's Game".