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Wakana Yamazaki was a Japanese actress, voice actress and narrator best known internationally as the long-running voice of Ran Mouri in Detective Conan. Born in Yokohama, Kanagawa Prefecture, and educated at Doshisha University and Aoni Juku Osaka, she became associated with Aoni Production and built a career that spanned television animation, feature animation, games, narration and live-action voice work. Her profile combined the range expected of a working Japanese voice actor with the unusual continuity of one signature role: Ran Mouri, the karate-trained heroine and emotional anchor of the Case Closed and Detective Conan franchise.
Yamazaki entered professional voice acting in the early 1990s and quickly accumulated credits across children's animation, fantasy, comedy and action series. Her early and mid-career work included roles in Ghost Sweeper Mikami, Sailor Moon R, Marmalade Boy, Neighborhood Story, Mobile Fighter G Gundam, Dragon Ball GT, GeGeGe no Kitaro, The Kindaichi Case Files, Trigun and Himitsu no Akko-chan. The breadth of those assignments shows how often she moved between supporting characters, guest roles and recurring parts before the Detective Conan role became central to her public identity.
Detective Conan began on television in 1996, and Yamazaki's performance as Ran Mouri became one of the franchise's defining sounds. Ran is both Shinichi Kudo's childhood friend and a lead character in her own right, and the role required Yamazaki to play everyday warmth, comedy, worry, physical confidence and moments of melodrama across hundreds of episodes, specials, games and theatrical films. She reprised Ran in the annual Detective Conan film series from The Time-Bombed Skyscraper through later entries such as Black Iron Submarine, The Million-Dollar Pentagram and One-Eyed Flashback, giving the character continuity across decades of changing animation styles and audiences.

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Outside Detective Conan, Yamazaki remained active in well-known anime franchises. She voiced Meiko Akizuki in Marmalade Boy, Arukenimon in Digimon Adventure 02 and Digimon Ghost Game, and Nojiko in One Piece. She also temporarily voiced Nami in One Piece while Akemi Okamura was on maternity leave, an example of the practical reliability often required in long-running Japanese animation production. In the Sailor Moon franchise she voiced Kōan in Sailor Moon R and later took over the role of Ikuko Tsukino for Sailor Moon Cosmos, connecting her career to both 1990s and modern revivals of the property.
Yamazaki also had an important presence in video games. Most notably, she voiced Ayane in the Dead or Alive series and related appearances, including crossovers with Ninja Gaiden. That role gave her a foothold in a major game franchise and introduced her voice to players beyond television anime. Her agency profile also lists game, narration, radio and television narration work, including news and variety-program narration, underscoring that her career was not limited to character animation.
In February 2026, Aoni Production and entertainment news outlets reported that Yamazaki would take a medical hiatus, with Akemi Okamura covering Ran Mouri during her treatment. Aoni's profile subsequently listed her death date as April 18, 2026. For many viewers, her legacy rests on the consistency and emotional familiarity she brought to Ran Mouri, but her wider filmography shows a performer who contributed to many of the biggest Japanese animation and game franchises of the 1990s, 2000s and 2010s.
References:
[1] Aoni Production, “Wakana Yamazaki” — https://www.aoni.co.jp/search/yamazaki-wakana.html
[2] Wikipedia, “Wakana Yamazaki” — https://en.wikipedia.org/wiki/Wakana_Yamazaki
[3] Anime News Network Encyclopedia, “Wakana Yamazaki” — https://www.animenewsnetwork.com/encyclopedia/people.php?id=815
[4] The Movie Database, “Wakana Yamazaki” — https://www.themoviedb.org/person/87582
[5] Behind The Voice Actors, “Wakana Yamazaki” — https://www.behindthevoiceactors.com/Wakana-Yamazaki/
[6] Wikipedia, “Detective Conan” — https://en.wikipedia.org/wiki/Case_Closed
[7] Wikipedia, “Ran Mouri” — https://en.wikipedia.org/wiki/Ran_Mouri
[8] Wikipedia, “Marmalade Boy” — https://en.wikipedia.org/wiki/Marmalade_Boy
[9] Wikipedia, “Digimon Adventure 02” — https://en.wikipedia.org/wiki/Digimon_Adventure_02
[10] Wikipedia, “Dead or Alive” — https://en.wikipedia.org/wiki/Dead_or_Alive_(franchise)
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