Eiji Akaso

Biography

Akaso Eiji is a Japanese actor and model, known for playing Ryuga Banjou in Kamen Rider Build. He is currently represented by Tristone Entertainment. He belonged to the Nagoya model office "FORM JAPAN" when he was in his teens. He was active as a model and talent under the name Mamoru Akaso (赤楚 衛, Akaso Mamoru). In 2010, he joined the local idol group "BOYS AND MEN" in Nagoya, working on stage performances and regular appearances of variety shows. Eiji is said to have left "BOYS AND MEN" in 2011. Originally, he entered the entertainment agency because he wanted to be an actor and not an idol. He won the Grand Prix at the men's model audition of Samantha Thavasa in 2013, which became the turning point for him to audition in Tokyo at the age of 19. The trigger that lead Eiji to drop out of university and to enter the world of entertainment was a call from the CEO of his current agency in 2014. In 2015, he transferred to his current agency Tristone Entertainment, working as an actor and starring in television dramas and films in his current stage name

Known For

Kamen Rider

Kamen Rider

Zom 100: Bucket List of the Dead

Cold Case ~Shinjitsu no Tobira~

Kazama Kimichika: Kyojo Zero

Amazon Riders

ISHIKO and HANEO: You're Suing Me?

Cherry Magic! Thirty Years of Virginity Can Make You a Wizard?!

All Movies (29)

• Tokyo MER: Mobile Emergency Room - Capital Crisis2026
• Kyojo Reunion2026
• KINKI2025 · as Ozawa Yusei
• 366 Days2025 · as Minato Makiya
• Six Lying University Students2024 · as Shogo Hatano
• What If Shogun Ieyasu Tokugawa Was to Become the Prime Minister2024 · as Ryoma Sakamoto
• Zom 100: Bucket List of the Dead2023 · as Akira Tendo
• Cherry Magic! THE MOVIE2022 · as Kiyoshi Adachi
• The Sunday Runoff2022
• Tales of the Bizarre: 2021 Fall Special2021
• The Great Yokai War: Guardians2021 · as Amanojaku
• Hakutaka Shirataka Amane no Investigation File2021 · as Uzuka Shinsaku
• Keep Your Hands Off Eizouken!2020 · as Kobayashi
• Love Me, Love Me Not2020 · as High School Boy (voice)
• Love Me, Love Me Not2020 · as Kazuomi Inui
• Kamen Rider Build NEW WORLD: Kamen Rider Grease2019 · as Ryuga Banjou / Kamen Rider Cross-Z
• Kamen Rider Build: Final Stage2019 · as Ryuga Banjou / Kamen Rider Cross-Z
• Kamen Rider Build NEW WORLD: Kamen Rider Cross-Z2019 · as Ryuga Banjou / Kamen Rider Cross-Z
• Kamen Rider Heisei Generations Forever2018 · as Ryuuga Banjou / Kamen Rider Cross-Z
• Kamen Rider Build: Special Event2018 · as Ryuga Banjou / Kamen Rider Cross-Z
• Kamen Rider Build The Movie: Be The One2018 · as Ryuuga Banjou · Kamen Rider Cross-Z
• Kamen Rider Amazons Season 2 the Movie: Reincarnation2018 · as Hiroki Nagase
• Super Hero Festival: Kamen Rider x Super Sentai Live & Show 20182018 · as Self / Kamen Rider Cross-Z (voice)
• Kamen Rider Build: Birth! Bear Televi!! VS Kamen Rider Grease!2018 · as Ryuga Banjo / Kamen Rider Cross-Z
• My Long Awaited Love Story2017
• Kamen Rider Heisei Generations FINAL: Build & Ex-Aid with Legend Riders2017 · as Ryuuga Banjou / Kamen Rider Cross-Z
• Closest Love to Heaven2017 · as Schoolmate
• Commuting to School Series On the Way to School2015
• One Year to Live, Buy a Man—

All TV Shows (28)

• Gimbap and Onigiri2026 · as Taiga Hase
• Inheritance Detective2025 · as Nao Haie
• Re: Revenge - At the End of Desire2024 · as Tendo Kaito
• Turn to Me Mukai-kun2023 · as Mukai Satoru
• Zom 100: Bucket List of the Dead2023 · as Refugee Guest 1 (voice)
• Pending Train2023 · as Yuto Shirahama
• Kazama Kimichika: Kyojo Zero2023 · as Junji Urihara
• Soar High!2022 · as Umezu Takashi [Mai's childhood friend]
• ISHIKO and HANEO: You're Suing Me?2022 · as Ao Ooba
• Hiru2022 · as Yuuki Shinomiya
• SUPER RICH2021
• She Was Pretty2021 · as Higuchi Takuya
• Date My Daughter!2021
• Date My Daughter!2021 · as Yuto
• Cherry Magic! Thirty Years of Virginity Can Make You a Wizard?!2020 · as Kiyoshi Adachi
• Gourmet Detective Goro Akechi2020 · as Nonaka
• Keep Your Hands Off Eizouken!2020 · as 小林 (ロボット研究部)
• Hey Sensei, Don't you know?2019 · as Kido Riichi
• I Shared My Husband2019 · as Hideaki Matsuda
• Innocence, Fight Against False Charges2019 · as Tokunori Isawa
• Kamen Rider Zi-O2018 · as Ryuga Banjo / Kamen Rider Cross-Z
• Kamen Rider Build2017 · as Ryuga Banjo / Kamen Rider Cross-Z
• Kamen Rider Build: Transformation Lessons ~The Laws Of Transformation Are Set!~2017 · as Ryuga Banjo / Kamen Rider Cross-Z
• Tokyo Girl2016 · as Kohei
• Cold Case ~Shinjitsu no Tobira~2016
• Amazon Riders2016 · as Hiroki Nagase
• Kamen Rider1971 · as Ryuga Banjou / Kamen Rider Cross-Z
• Kamen Rider1971 · as Ryuga Banjo / Kamen Rider Cross-Z