
Hiroki Matsumoto
Biography
Hiroki Matsumoto (松本 大輝, Matsumoto Hiroki, born March 29, 1999) is a Japanese actor from Sapporo, Hokkaido. He stands 182 cm tall and has blood type O. He is represented by Stardust Promotion.
His path to acting began unexpectedly: while studying to become a sports trainer, he was awarded the Grand Prize at the prestigious 31st Junon Superboy Contest in 2018. This recognition marked the start of his artistic career. He made his acting debut in 2019 with a role in the drama Rinshō Hanzaigakusha Himura Hideo no Suiri, and has since steadily built a presence in television and film. His breakthrough came in 2022, when he was cast as the lead in the series Ultraman Decker, playing Kanata Asumi—a role that connected him directly to the iconic tokusatsu franchise.
Beyond his screen work, Matsumoto has shown strong athletic ability, particularly in basketball, a sport in which he competed at the national level during his school years. His hobbies include watching films and collecting sneakers.
*** Not to be confused with the voice actor of the same name, also written 松本大輝, affiliated with 81 Produce.
Known For

TV
Ultraman Decker
Kanata Asumi
2022

TV
JOFU ~Do Women Need Escorts?~
Maruni
2025

TV
Mr. Sahara & Toki-kun
Shinji Todo
2023

TV
When It Rains, It Pours
Kazuaki Fujisawa
2025

Film
Ultraman Decker Finale: Journey to Beyond
Kanata Asumi
2023

TV
My Fave Is Mine
Ginga
2023

TV
Ryakudatsu Datsukon
Nao
2026

Film
Suicide Notes Laid on the Table
Arashi Yokoyama
2025

TV
Koifure ~Koibito Miman ga Choudo ii~
Jo
2025

TV
Six-Colored Time Machine
Ryusei Kashiwagi
2025

TV
The Final Lesson -Only Survivors Graduate
Daichi Nagai

Film
Ultraman Connection Presents: Tamashii Nations Special Streaming featuring Ultraman Trigger
Kanata Asumi
2022

Film
Ultraman Decker Preview Special
Kanata Asumi
2022
Filmography
2026TVRyakudatsu Datsukonas Nao2025TVKoifure ~Koibito Miman ga Choudo ii~as Jo2025TVSix-Colored Time Machineas Ryusei Kashiwagi2025TVJOFU ~Do Women Need Escorts?~as Maruni2025FilmSuicide Notes Laid on the Tableas Arashi Yokoyama2025TVWhen It Rains, It Poursas Kazuaki Fujisawa2023TVMr. Sahara & Toki-kunas Shinji Todo2023TVMy Fave Is Mineas Ginga2023FilmUltraman Decker Finale: Journey to Beyondas Kanata Asumi2022FilmUltraman Connection Presents: Tamashii Nations Special Streaming featuring Ultraman Triggeras Kanata Asumi2022TVUltraman Deckeras Kanata Asumi2022FilmUltraman Decker Preview Specialas Kanata Asumi—TVThe Final Lesson -Only Survivors Graduateas Daichi Nagai