Live action portrayal by: Hiroshi Tamaki
An accomplished pianist and violinist, but is also known to be a perfectionist when it comes to music and is highly critical of himself and others. As he opens up to others (with much prodding from Nodame), he becomes more caring of his friends and readily lends a hand to his friends should they need help. In university, he was extremely popular among the female students due to his good looks and musical ability.
Megumi "Nodame" Noda
Live action portrayal by: Juri Ueno
A free-spirited second-year music student. She is depicted as a complete slob: her cooking and cleaning skills are atrocious to the point of having mushrooms growing on her clothes and poisoning anyone who dares to eat her food (yet she's never been poisoned). However, she is an incredibly talented pianist who primarily plays by ear, in a cantabile style. She is in love with Chiaki and she follows him around constantly, claiming to be his "wife", and leans on him to help her get through sticky situations.
Maestro Franz von Stresemann
Voiced by: Shinji Ogawa (JP), Terrence Stone (EN)
Live action portrayal by: Naoto TakenakaAn elderly, highly-respected internationally famous conductor who comes to Momogaoka Music Academy as a guest instructor.
Live action portrayal by: Eita4th-year violin student in Momogaoka. He is something of a primadonna whose violin technique is seen by himself to be deeply personal but by others to be simply sloppy. He sees Chiaki as a rival for attention.
Voiced by: Masaya Matsukaze (JP), Joe Cappelletti (EN)
Live action portrayal by: Seiji FukushiA talented oboe player who falls for Nodame at first sight. He tends to be phlegmatic and quiet, other people think he has a Zen-like aura. First seen as part of The Rising Star Orchestra, then later joined Chiaki in the Marlet Orchestra in Paris
Live action portrayal by: Asami MizukawaA prodigious violinist Chiaki met at the Nina Lutz's seminar.
Live action portrayal by: Keisuke KoideA 4th-year timpanist (percussion) and an okama. He developed a crush on Chiaki and always admired him from afar.
Live action portrayal by: Misa UeharaChiaki's ex-girlfriend. Coming from a wealthy family, she majors in singing (more specifically opera). She is the "belle" of the school due to her looks and voice.
Live action portrayal by: SaekoA double bass player in Chiaki's S orchestra, whose family was in financial trouble because her father's business was about to go bankrupt.
Live action portrayal by: Kosuke ToyoharaA piano teacher also known as the "harisen teacher" (Paper Fan-sensei). He was Chiaki's teacher at the start of the story, but after Chiaki blew up at him for scoffing at his dream of being a conductor, Etoh threw Chiaki out of his class.
Voiced by: Mitsuru Ogata (JP), Robert Buchholz (EN)
Live action portrayal by: Masahiko NishimuraA piano teacher at Momogaoka, said to specialize in "drop-out" students.
Voiced by: Junichi Suwabe (JP), Peter Doyle (EN)
Live action portrayal by: Osamu MukaiA womanizing cellist and one of the founders of the Rising Star Orchestra.
Voiced by: Shintaro AsanumaA French piano student who lives in the same apartment complex as Chiaki and Nodame.
Tatiana "Tanya" Vishneva
Voiced by: Shizuka ItoAn attractive Russian senior piano student who lives in the same apartment complex as Chiaki, Nodame, Frank, and Yunlong. Her piano playing is somewhat mediocre and she lacks confidence in her ability, which seems to be the reason behind her fixation on finding an affluent boyfriend in France.
Voiced by: Satoshi HinoA Chinese piano player who lives in the same apartment complex as Nodame and Chiaki do in Paris.
Voiced by: Sayaka OharaA world-famous Chinese pianist who is making a gradual comeback.
Voiced by: Toshiyuki MorikawaAnother of Vieira's students, who also works in Paris and considers himself a rival to Chiaki.
Voiced by: Motomu Kiyokawa (JP), Terrence Stone (EN)
Live action portrayal by: Manuel DoncelAn esteemed and well-known professor of piano at the Conservatory where Nodame studies.
Live action portrayal by: Michiko KichiseStresemann's hard-nosed agent and business manager.
Live action portrayal by: Zdenek MacalA world renowned conductor and Chiaki's mentor.
Voiced by: Kenyuu HoriuchiChiaki's father and a famous pianist. He left Chiaki's mother when Chiaki was still a young boy.
Voiced by: Hiroki TochiThe conductor Chiaki chooses to replace him as conductor of the Rising Star Orchestra.