Quartet (カルテット, Karutetto) is a Japanese television drama, broadcast from January 2017 to March 2017 on the TBS television network. It stars Takako Matsu, Hikari Mitsushima, Issei Takahashi, and Ryuhei Matsuda.

Four musicians meet at a karaoke bar in Tokyo and decide to form a quartet. They move into a house in Karuizawa to rehearse and perform at a local restaurant and music hall.

• Takako Matsu as Maki Maki, first violin, whose husband disappeared a year earlier
• Hikari Mitsushima as Suzume Sebuki, cellist, with mysterious past
• Issey Takahashi as Yutaka Iemori, violist
• Ryuhei Matsuda as Tsukasa Beppu, second violin, whose grandfather owns the house they are living in.
• Riho Yoshioka as Alice Kisugi, a waitress at Nocturne Restaurant and Music Hall
• Takeshi Tomizawa as Daijiro Tanimura, chef at Nocturne restaurant and music hall
• Akiko Yagi as Takami Tanimura, manager of Nocturne Restaurant & Music Hall
• Mummy-D as Atsushi Handa
• Masako Motai as Kyoko Maki, Maki Maki's mother-in-law who thinks Maki killed her son and hires Suzume to spy on her

• Quartet at IMDb