Kazunari Ninomiya Biography: Age, Wife, Net Worth, Height, Arashi, Movies, Daughters

Kazunari Ninomiya is a multifaceted Japanese actor, singer, songwriter, and television host, renowned as a member of the iconic J-pop group Arashi and for his compelling performances in dramas and films that blend emotional depth with versatile charm.

Rising through Johnny & Associates’ rigorous training, he has balanced idol stardom with critically acclaimed roles in projects like Letters from Iwo Jima and Assassination Classroom, while his hosting and voice acting further showcase his range.

Profile

• Full Name: Kazunari Ninomiya
• Stage Name: Kazunari Ninomiya (Nino)
• Born: June 17, 1983
• Age: 42 years old
• Birthplace: Katsushika, Tokyo, Japan
• Nationality: Japanese
• Occupation: Actor, Singer, Songwriter, and Television Host
• Height: 5 feet 6 inches
• Parents: Mr. and Mrs. Ninomiya
• Siblings: One older sister
• Spouse: Unknown
• Children: Three daughters
• Relationship: Married
• Net Worth: $10 million USD

Early Life and Education

Kazunari Ninomiya, a multifaceted Japanese actor, singer, songwriter, and television host, was born on June 17, 1983, in Katsushika, Tokyo, Japan.

Raised in a working-class family by Mr. and Mrs. Ninomiya alongside an older sister, he developed an early interest in performance through school plays and local music.

At age 13, his cousin submitted his resume to Johnny & Associates without his knowledge, launching his career.

He completed high school in Tokyo, balancing academics with rigorous trainee schedules, though details of further education remain private as his focus shifted to entertainment.

His ethnicity is Japanese, and he observes Shinto traditions.

Career

Kazunari Ninomiya joined Johnny & Associates in 1996, debuting with Arashi in 1999 alongside Satoshi Ohno, Sho Sakurai, Masaki Aiba, and Jun Matsumoto, with hits like “A·RA·SHI” and “Happiness” dominating Oricon charts.

His acting career began with the 1998 drama Amagi Goe, followed by a breakthrough in Stand Up!! (2003).

He gained international acclaim as Saigo in Clint Eastwood’s Letters from Iwo Jima (2006), earning Hollywood recognition.

Notable roles include Assassination Classroom (2015) as Koro-sensei, the Gantz films (2010–2011), and NHK’s Yasashii Jikan (2005).

Recent projects include Netflix’s As Long As We Both Shall Live (2023) and the 2025 film The Outcast, alongside hosting Bay Storm and voice work in Tekkonkinkreet (2006).

With over 100 credits and contributions to Arashi’s 58 singles and 16 albums, he remains a prolific figure post-Arashi’s 2020 hiatus.

Social Media

• Kazunari Ninomiya does not have a social media account.

Personal Life

Kazunari Ninomiya, a multifaceted Japanese actor, singer, songwriter, and television host, aged 42, leads a private family-oriented life in Tokyo.

Married in 2020 to a non-celebrity partner after a three-year relationship, he is a father to three daughters, born in 2021, 2022, and 2024.

Close to his sister and parents, he credits their support for his grounded perspective, often drawing from childhood memories in his songwriting.

A gaming enthusiast, he unwinds with video games and guitar practice, maintaining minimal social media presence to preserve family privacy while occasionally sharing professional updates through agency platforms.

Filmography

• Amagi Goe (TV Series, 1998)
• Stand Up!! (TV Series, 2003) as Shōhei Asai
• Yasashii Jikan (TV Series, 2005) as Takuro Wakabayashi
• Letters from Iwo Jima (Film, 2006) as Saigo
• Tekkonkinkreet (Film, 2006) as Kuro (voice)
• Gantz (Film, 2010) as Kei Kurono
• Gantz: Perfect Answer (Film, 2011) as Kei Kurono
• Freeter, Ie o Kau (TV Series, 2011) as Seiji Take
• Assassination Classroom (Film, 2015) as Koro-sensei
• Assassination Classroom: Graduation (Film, 2016) as Koro-sensei
• As Long As We Both Shall Live (TV Series, 2023) as Yūichi
• The Outcast (Film, 2025) as Lead Role

Net Worth

Kazunari Ninomiya, a multifaceted Japanese actor, singer, songwriter, and television host, commands an estimated net worth of $10 million USD.

His wealth stems from Arashi’s music royalties, acting fees from high-profile films like Letters from Iwo Jima, and hosting gigs on Bay Storm, supplemented by songwriting residuals and endorsements with brands like JAL and au.