Main •
Jerry (voiced by Viktor Birath (seasons 1–2) and Joakim Beutler (season 3) (original); Joona Saastamoinen (Dubbed)) is the new kid in town, who has blond hair and buck teeth. He is a calm and bright boy with a head full of ideas. He desperately wants to join the eponymous Three Friends, but they do not see him as part of their group. •
Frank (voiced by Sean Bussoli (original), Archit Tripathi (Dubbed)) is the leader of the Three Friends. He is a bald-headed boy who wears a blue T-shirt with a yellow number 1. The polar opposite to Jerry, Frank is short-tempered and cunning. Due to his appearance, he is seen as the ugliest boy in school. He ineffectively tries to win the heart of the leader of the girl gang – Linda – despite the fact they are actually cousins. •
Thomas (voiced by Robby Johansson) is a boy with an orange hoodie, never seen without his big green cap. He is dominated by Frank and normally takes his side. Thomas is a very good artist, but he is self-conscious and feels that he needs to hide his creative nature. •
Eric (voiced by Calle Waldekranz) is a boy with chin-length blond hair and a green T-shirt. He loves
football and is the best sports player in the school. Just like Thomas, Eric is dominated by Frank. He is also prone to suffering from a weak stomach. •
Linda (voiced by Gabriella Wegdell) is the leader of the girl gang who sometimes acts like a spoiled brat and uses strong language. She is a bit tougher and a little more mature than her two friends, Mimmi and Tess. Linda is also Frank's cousin. •
Mimmi (voiced by Linnéa Hincks) is an Asian girl who lives next door to Linda and has a swimming pool in her garden. She wears a blue dress with a smiley face symbol. Her adoptive father has his own business and lots of money. Mimmi considers her wealth as her main asset. •
Tess (voiced by Sara Berling) is a short and shy girl who tends to blindly follow Linda. Tess's older brother, Tony, is a cool teenager who drives her to school on his moped. Tess has short blonde hair and wears a white shirt, purple skirt, and green shoes.
Minor • The
Teacher (voiced by Anna Pettersson) teaches Jerry's class. She always has unshaven legs. The Three Friends and Jerry often try to send her into space so they will not have any lessons. • The
PE Teacher (voiced by Rolf Skoglund) is Jerry's bad-tempered father. He tends to act very loud with the Three Friends and his son, but he has a good heart and intentions. He has red hair and an athletic and muscular body. He lives in a one-floor house with his wife and son. • '''Jerry's mother''' (voiced by Gunilla Orvelius) is the PE Teacher's wife. She has a caring and calm personality. Jerry inherited his looks and personality from her. •
Roy Johnson (voiced by Anders Mårtensson) is Mimmi's adoptive father and the wealthiest person in the town. He runs the local shop. •
Monica (voiced by Helena af Sandeberg) is an attractive brunette who works at Roy's shop. She is also Tony's girlfriend. •
Tony (voiced by Nick Anderson) is a heavy metal guitarist, Tess' 16-year-old brother and Monica's boyfriend. •
Dick Priest (voiced by Gunnar Uddén) keeps an eye on the town. As a priest, he works in the church. Despite campaigning against everything he deems as immoral, he is revealed to be a fan of metal music and horror movies. •
Mr. and Mrs. Ingrid Bertwhistle are Jerry's neighbours. Mr. Bertwhistle is a grumpy man obsessed with contacting extraterrestrials. The boys like him to some degree, but he does not fare well with Jerry's father. Meanwhile Mrs. Bertwhistle is the librarian of the town's public library, she is also a very vocal activist against certain things she believes "corrupts" children. •
Oscar (voiced by Hasse Andersson) is a local bum who everybody in the town looks down upon. Several years ago, he was a wealthy and respected person. Everything changed when, while being a beauty contest juror, he mistakenly gave the first place to Jerry, when Roy previously bribed him to make his daughter Mimmi win. After losing his wealth, he lives in an old shack. Most of the children are afraid of him. ==Production==