Ryuji Sainei

For a certain generation of Japanese kids, Ryuji Sainei will always be Ban Akaza, the red ranger of Tokusou Sentai Dekaranger in 2004. Super Sentai is a strange launchpad: it hands a young actor instant national recognition and a costume-shaped ceiling in the same year. Plenty of people never escape it. What I find quietly telling about Sainei is what came after. He left Horipro at the end of 2014 and went freelance, then in April 2015 changed how he writes his name, swapping the kanji for hiragana while keeping the pronunciation identical. To an outsider that sounds like nothing. To anyone who has watched Japanese entertainment up close, it reads as a deliberate line drawn between one chapter and the next, made at an age when most performers are told to protect their brand rather than redraw it. Born in Higashihiroshima and educated at Meiji University, he has built the kind of steady television career that does not generate headlines. Longevity in that industry is not luck. It is a choice repeated year after year.

This take was written by generative AI, one per person, from publicly reported facts (editorial policy). It is a reading of the record, not reporting.

Name (English)

Ryuji Sainei

Name (Japanese)

さいねい龍二

Reading

さいねい りゅうじ

Born

October 8, 1981 (age 44)

Origin

Higashihiroshima, Hiroshima Prefecture, Japan

Height

181 cm

Occupation

actor / television actor

Zodiac / Chinese zodiac

Libra / Rooster

Blood type

O

Active years

2002 - present

University

Meiji University

Works summary

Appearances

140 (2002–2025)

By year (titles with a known year)

2002: 1, 2003: 4, 2004: 6, 2005: 5, 2006: 12, 2007: 7, 2008: 6, 2009: 8, 2010: 4, 2011: 7, 2012: 11, 2013: 5, 2014: 5, 2015: 6, 2016: 11, 2017: 14, 2018: 5, 2019: 2, 2020: 1, 2021: 1, 2022: 1, 2024: 1, 2025: 1, year unknown: 16

Debut work

ごくせん

Filmography / notable works

• Instagramhttps://www.instagram.com/ryujisainei/
• Xhttps://x.com/ryujisainei
• Wikipedia (English)https://en.wikipedia.org/wiki/Ryuji%20Sainei
• Wikipedia (Japanese)https://ja.wikipedia.org/wiki/%E3%81%95%E3%81%84%E3%81%AD%E3%81%84%E9%BE%8D%E4%BA%8C
• Wikidatahttps://www.wikidata.org/wiki/Q2234501

Tags

• Hiroshima Prefecture
• actor
• television actor

Last updated

September 25, 2026

Facts are limited to publicly available information up to 2024; non-public or unconfirmed items are omitted. Works and profile fields sourced from Wikipedia reflect content as of 2026-08-26. English text is machine-assisted (facts translated by Sonnet, "My Take" written by Opus 4.8). The Japanese page is the source of record.