Kanichiro official photo - Japanese Humanite actor, star of The Boy and I Who Will Break Up in 100 Days

Kanichiro

BIOGRAPHY

Kanichiro (Japanese: 寛一郎; born August 16, 1996) is a Japanese actor signed to Humanite. He plays Itsuki Hasegawa opposite Kentaro Ito’s Yuma Kasuga in the 2026 MBS boys’ love drama The Boy and I Who Will Break Up in 100 Days, based on the novel by the late Asahara Naoto.

Born in Setagaya, Tokyo, he comes from a well-known acting family: his father is actor Koichi Sato and his grandfather was the late actor Rentaro Mikuni. He decided to pursue acting at eighteen and, after finishing high school, spent a short period studying in Los Angeles before returning to Japan to begin his career.

He made his screen debut in the film Kiku to Girochin (Chrysanthemum and Guillotine), shot in 2016 and released in 2018, and formally entered the industry in 2017. His performances have been recognized with the Best New Actor prize at the 33rd Takasaki Film Festival, Newcomer Actor honors at the 27th Japan Movie Critics Awards and the 92nd Kinema Junpo Best Ten, and the Supporting Actor prize at the 28th Japan Movie Critics Awards. His other credits include the films Kokoro ga Sakebitagatterunda and Namiya Zakkaten no Kiseki, and the television drama Grand Maison Tokyo.

BLGLFlix editorial view

He works without the surname that would explain him.

Kanichiro, born 16 August 1996 in Setagaya, plays Itsuki Hasegawa in The Boy and I Who Will Break Up in 100 Days. His legal name is Kanichiro Sato. His father is the actor Koichi Sato and his grandfather was Rentaro Mikuni.

Three generations of actors is a considerable thing to be handed, and dropping the family name from the credit is the one part of it a performer controls. It hides nothing, since Japanese press writes about the lineage constantly, but it does mean the name on screen is a first name and nothing more.

The awards suggest the help was not needed. Best New Actor at the Takasaki Film Festival, newcomer prizes from the Japan Movie Critics Awards and Kinema Junpo, then a supporting actor prize from the same critics the following year, all inside a few years of a 2017 start.

He settled on acting at eighteen and spent a short period studying in Los Angeles before coming home to begin. His birth date, birthplace, legal name, agency, a dated debut and four awards sit on this page. No social account is listed here, because no two independent sources point to the same one.

PROFILE DETAILS

Native Name
寛一郎
Real Name
Kanichiro Sato (佐藤寛一郎)
Nickname
Kanichiro (寛一郎), performs mononymously
Pronouns
he/him
Born
(Age 30)
Birthplace
Setagaya, Tokyo, Japan
Gender
Male
Western Zodiac
Leo ♌
Chinese Zodiac
Rat 🐭
Height
182 cm (5'11.5")
Profession
Nationality
Debut
2017 — Kiku to Girochin (Chrysanthemum and Guillotine), filmed 2016, released 2018; formally began his acting career in 2017
Agency / Label
Humanite (ユマニテ)
Years Active
2017-present

NOTABLE AWARDS

  • 27th Japan Movie Critics Awards, Newcomer Actor.
  • 92nd Kinema Junpo Best Ten, Newcomer Actor.
  • 33rd Takasaki Film Festival, Best New Actor.
  • 28th Japan Movie Critics Awards, Supporting Actor.

FREQUENTLY ASKED QUESTIONS

Who is Kanichiro?

Kanichiro is a Japanese actor born on August 16, 1996 in Setagaya, Tokyo. He is signed to Humanite and is the son of actor Koichi Sato and the grandson of the late actor Rentaro Mikuni.

Who does Kanichiro play in The Boy and I Who Will Break Up in 100 Days?

He plays Itsuki Hasegawa, one half of a gay couple who go viral online and agree to film a 100-day documentary about their relationship, even though they have secretly already broken up.

How tall is Kanichiro?

He is listed at 182 cm (5’11.5″), a figure confirmed by both the Japanese Wikipedia article on him and Crank-in.net’s talent profile.

What was Kanichiro's first role?

His screen debut was the film Kiku to Girochin (Chrysanthemum and Guillotine), shot in 2016 and released in 2018; he formally began his acting career in 2017.

What awards has Kanichiro won?

He has received the Newcomer Actor prize at the 27th Japan Movie Critics Awards and the 92nd Kinema Junpo Best Ten, Best New Actor at the 33rd Takasaki Film Festival, and the Supporting Actor prize at the 28th Japan Movie Critics Awards.

Biographical details and any photograph on this page come from TMDB and the sources named in our editorial notes. This product uses the TMDB API but is not endorsed or certified by TMDB. BLGLFLIX is an independent reference site with no affiliation to the person profiled or their agency, and does not publish speculation about anyone’s private life. Full copyright, correction and takedown policy: Disclaimer.

Sources

4 sources

Every factual claim on this page is taken from the records below. Where two sources disagree, the disagreement is stated in the text rather than resolved silently.

  1. TMDBTMDB person page themoviedb.org/person/1893976
  2. WikipediaJapanese Wikipedia, 寛一郎 ja.wikipedia.org/wiki/寛一郎
  3. CRANK-INCrank-in.net talent profile crank-in.net/person/222251
  4. CRANK-INCrank-in.net cast page, 100日後に別れる僕と彼 crank-in.net/drama/spring2026/2063

This product uses the TMDB API but is not endorsed or certified by TMDB.

Metadata and images courtesy of TMDB. This product uses the TMDB API but is not endorsed or certified by TMDB. All posters, portraits, cover art, and promotional materials remain the property of their respective copyright holders and are shown solely to identify the works described. BLGLFLIX does not host or distribute any video content. See our DMCA / Copyright Policy.