Release calendarTop 250 moviesMost popular moviesBrowse movies by genreTop box officeShowtimes & ticketsMovie newsIndia movie spotlight
    What's on TV & streamingTop 250 TV showsMost popular TV showsBrowse TV shows by genreTV news
    What to watchLatest trailersIMDb OriginalsIMDb PicksIMDb SpotlightFamily entertainment guideIMDb Podcasts
    OscarsPrimetime EmmysToronto Int'l Film FestivalFall TV GuideMost Anticipated This MonthSTARmeter AwardsAwards CentralFestival CentralAll events
    Born todayTrending peopleCelebrity news
    IMDb LabsHelp centerContributor zonePolls
For industry professionals
  • Language
  • Fully supported
  • English (United States)
    Partially supported
    Some content may be auto-translated
  • Français (Canada)
  • Français (France)
  • Deutsch (Deutschland)
  • हिंदी (भारत)
  • Italiano (Italia)
  • Português (Brasil)
  • Español (España)
  • Español (México)
Watchlist
Sign in
  • Fully supported
  • English (United States)
    Partially supported
    Some content may be auto-translated
  • Français (Canada)
  • Français (France)
  • Deutsch (Deutschland)
  • हिंदी (भारत)
  • Italiano (Italia)
  • Português (Brasil)
  • Español (España)
  • Español (México)
Use app
  • Biography
IMDbPro

Ryûoh Yamaguchi

  • Actor
IMDbProStarmeterSee rank
Ryûoh Yamaguchi is known for Inheritance Detective (2025), Special Investigation Nine (2018) and The Woman of S.R.I. (1999).
  • More at IMDbPro
    • Contact info
    • Agent info
IMDbProStarmeterSee rank
Add photos, demo reels
  • View contact info at IMDbPro

    • Known for

    Eiji Akaso in Inheritance Detective (2025)
    Inheritance Detective
    6.5
    TV Series
    • Actor
    Mitsuru Fukikoshi, Michiko Hada, Sachie Hara, Hiromasa Taguchi, Akira Terao, Kanji Tsuda, Yoshihiko Inohara, Noriko Nakagoshi, and Yuki Yamada in Special Investigation Nine (2018)
    Special Investigation Nine
    7.2
    TV Series
    • Shuntaro Akamatsu
    Yasuko Sawaguchi in The Woman of S.R.I. (1999)
    The Woman of S.R.I.
    7.3
    TV Series
    • Hironori Kozai
    Keiji, Furidashi ni Modoru (2026)
    Keiji, Furidashi ni Modoru
    5.8
    TV Series
    • Hajime Yanagishita

    Credits

    IMDbPro

    Actor

    • Keiji, Furidashi ni Modoru (2026)
      Keiji, Furidashi ni Modoru
      5.8
      TV Series
      • Hajime Yanagishita
      • 2026
    • Mitsuru Fukikoshi, Michiko Hada, Sachie Hara, Hiromasa Taguchi, Akira Terao, Kanji Tsuda, Yoshihiko Inohara, Noriko Nakagoshi, and Yuki Yamada in Special Investigation Nine (2018)
      Special Investigation Nine
      7.2
      TV Series
      • Shuntaro Akamatsu
      • 2025
    • Eiji Akaso in Inheritance Detective (2025)
      Inheritance Detective
      6.5
      TV Series
      • 2025
    • Yasuko Sawaguchi in The Woman of S.R.I. (1999)
      The Woman of S.R.I.
      7.3
      TV Series
      • Hironori Kozai
      • 2022
    • Takashi Naitô in Tokyo MPD - From ZERO to HERO (2016)
      Tokyo MPD - From ZERO to HERO
      5.4
      TV Series
      • Tsunao Uga
      • 2021
    • Onsen Waka Okami no Satsujin Suiri 27
      TV Movie
      • 2014
    • Red Dead Wagon 32: 3 Sisters of Nirrti
      TV Movie
      • Nomura
      • 2013
    • Red Dead Wagon 31: Memories of Lily
      TV Movie
      • Nomura
      • 2013
    • Onsen Waka Okami no Satsujin Suiri 24
      TV Movie
      • 2012
    • Onsen Waka Okami no Satsujin Suiri 22
      TV Movie
      • 2012
    • Kuro no kassôro - kinjirareta ichizoku
      TV Movie
      • 2012
    • Onsen Waka Okami no Satsujin Suiri 19
      TV Movie
      • 2008
    • Onsen Waka Okami no Satsujin Suiri 17
      TV Movie
      • 2006
    • Tetsudô sôsakan 6: Tokkyu super yakumo no satsui
      TV Movie
      • Jiro Osawa
      • 2005

    Contribute to this page

    Suggest an edit or add missing content
    • Learn more about contributing
    Edit page

    More to explore

    Recently viewed

    You have no recently viewed pages
    Get the IMDb app
    Sign in for more accessSign in for more access
    Follow IMDb on social
    Get the IMDb app
    For Android and iOS
    Get the IMDb app
    • Help
    • Site Index
    • IMDbPro
    • Box Office Mojo
    • License IMDb Data
    • Press Room
    • Advertising
    • Jobs
    • Conditions of Use
    • Privacy Policy
    • Your Ads Privacy Choices
    IMDb, an Amazon company

    © 1990-2026 by IMDb.com, Inc.