Seishirou Katou
Aug 4, 2001 (24)
Kanagawa, Japan
15 Movies
14 Series
Seishirou Katou, an actor from Kanagawa, Japan, began their career in the 2000s. Their credits include Assassination Classroom as Itona. They have also starred in Assassination Classroom: Graduation and Heart and Yummie. They have 15 films and 14 TV productions to their name, working mainly across genres like action, comedy, sci-fi.
24Age
15Movies
14Series
Seishirou Katou
15 Movies
14 Series
Seishirou Katou, an actor from Kanagawa, Japan, began their career in the 2000s. Their credits include Assassination Classroom as Itona. They have also starred in Assassination Classroom: Graduation and Heart and Yummie. They have 15 films and 14 TV productions to their name, working mainly across genres like action, comedy, sci-fi.
24
Age
15
Movies
14
Series
Movies
Friends: Naki on Monster Island
2011
Cells at Work!
2024
Assassination Classroom
2015
Assassination Classroom: Graduation
2016
Ninja Kids!!!
2011
Heart and Yummie
2010
For Love's Sake
2012
Zatoichi: The Last
2010
Twilight
2019
Shining Boy and Little Randy
2005
Ninja Kids!!! Summer Mission Impossible
2013
The Sun Stands Still
2021
#HandballStrive
2020
TV Shows
Guardian of the Market
2022
Spinnerbait
2026
Dragon Sakura
2005
The Greatest Teacher
2023
The Wallflower
2010
Hoso Kyoku Senkyo
2025
Before the Day
2026
Odd Family 11
2011
Isn't It a Bad Guy?
2022
Lawyer Sodom
2023
Kenzo Kitakata: SUIKODEN
2026
Goodbye Alma
2010
Moribito: Guardian of the Spirit
2016
The History of Our Family
2010
Latest Trailers
Watch Trailer
Cells at Work!
Full Filmography
Spinnerbait
Kota Mitsui
2026–
TV
Before the Day
Kotaro Sakabe
2026
TV
Death Note: The Musical
Light Yagami
2026
Film
Kenzo Kitakata: SUIKODEN
Gen Shogo
2026
TV
Hoso Kyoku Senkyo
Hiroshi Ibuki
2025
TV
Cells at Work!
Arata Takeda
2024
Film
舞台「未来少年コナン」
コナン
2024
Film
The Greatest Teacher
Sagara Rui
2023
TV
Lawyer Sodom
Kai Yakumo
2023
TV
Photos
Frequently Asked Questions
How old is Seishirou Katou and where are they from?
Seishirou Katou is 24 years old, born on August 4, 2001 in Kanagawa, Japan.
What are the most famous roles of Seishirou Katou?
Seishirou Katou is best known for roles in Assassination Classroom, Assassination Classroom: Graduation, Heart and Yummie.
How many movies has Seishirou Katou been in?
Over a 21-year career (since 2005), Seishirou Katou has appeared in 23 movies and 18 TV shows.
What was Seishirou Katou's first movie?
The career of Seishirou Katou began with Shining Boy and Little Randy (2005).
What is Seishirou Katou's most recent movie or series?
Seishirou Katou's most recent release is Spinnerbait, which premiered on July 1, 2026.
What TV shows has Seishirou Katou appeared in?
On television, Seishirou Katou has appeared in Dragon Sakura, The Greatest Teacher, Odd Family 11, Moribito: Guardian of the Spirit.
Seishirou Katou
2001-08-04 · Kanagawa, Japan
Seishirou Katou is a Japanese child actor. He debuted when he was 13 months old.