Yuriko Yamaguchi

Yuriko Yamaguchi (山口由里子) is a Japanese voice actress and narrator whose career includes some of the most recognizable female characters in anime. She is best known internationally as the original Japanese voice of Nico Robin in One Piece and Ritsuko Akagi in Neon Genesis Evangelion, while other notable performances include Nurse Joy in Pokémon, Vados in Dragon Ball Super, Sonia Wakabayashi in Eureka Seven, and several roles across television anime, films and video games.

Born in Osaka in 1965, Yamaguchi did not originally set out to become a voice actress. She worked as a stage actress until around the age of 30 before being invited to audition for an anime project. That audition led to her being cast as Ritsuko Akagi in Neon Genesis Evangelion, effectively beginning the voice-acting career that would later make her internationally famous.

Her career has since covered more than three decades, with work in anime, animated films, video games, narration and Japanese-language dubbing. She remains particularly associated with One Piece and Evangelion, two franchises in which her performances have continued across television series, theatrical movies and related projects.

Who Is Yuriko Yamaguchi?

Yuriko Yamaguchi is the professional name used by Japanese voice actress and narrator Yuriko Yamaguchi (山口由里子). She was born on November 21, 1965, in Osaka Prefecture, Japan.

According to her current Aoni Production profile, Yamaguchi trained at the En Theatre Research Institute’s advanced course and has worked with 81 Produce, as a freelancer, Vi-Vo and subsequently as a freelancer again before joining Aoni Production. The agency lists her vocal range as alto, with the ability to use both lower and higher registers, and notes that she speaks the Osaka dialect.

Her professional credits are particularly notable for their longevity. Rather than becoming known for one short-lived series, Yamaguchi has maintained associations with characters such as Nico Robin and Ritsuko Akagi across television anime, feature films and games.

She is also a narrator and has worked beyond conventional character acting. Her Aoni Production profile lists major anime credits including One Piece, Pokémon, Neon Genesis Evangelion, Cardcaptor Sakura, Ah! My Goddess!, Inuyasha, Shaman King, Noir and others.

Early Life and Career

Yamaguchi’s route into voice acting was different from that of many modern seiyuu performers. She spent her early professional years as a stage actress, rather than immediately building a career in animation.

In a 2026 interview, Yamaguchi explained that she had been a stage actress until approximately the age of 30. She was then asked whether she wanted to audition for an anime. She accepted the opportunity, auditioned and won the role of Ritsuko Akagi in Neon Genesis Evangelion. She has described that moment as the event that turned voice acting into her professional path.

Her training at the En Theatre Research Institute also gave her a foundation in traditional acting before she moved further into recorded performance. Her stage background remains relevant to understanding her voice work because many of her characters depend on controlled emotional delivery rather than exaggerated vocal effects.

Yamaguchi’s career history also includes several agency transitions. Aoni Production currently lists her professional history as 81 Produce → freelance → Vi-Vo → freelance, before her current affiliation with Aoni Production.

Voice Acting Career

Ritsuko Akagi in Neon Genesis Evangelion

The role that launched Yamaguchi’s voice-acting career was Ritsuko Akagi in Neon Genesis Evangelion.

Ritsuko is a scientist working with NERV and is one of the series’ central adult characters. Unlike many anime roles built around highly exaggerated personalities, Ritsuko requires a restrained and serious performance. Her scientific expertise, professional authority and complicated personal relationships give the character considerable dramatic depth.

Yamaguchi’s performance continued beyond the original 1995–1996 television series. She reprised Ritsuko in The End of Evangelion, the Rebuild of Evangelion films and numerous related games. IMDb lists her as Ritsuko in the original series and films including Evangelion: 1.0 You Are (Not) Alone and Evangelion: 2.0 You Can (Not) Advance.

The character therefore remained an important part of her career from her earliest major voice role through the modern Evangelion films.

Nico Robin in One Piece

For many anime fans, Yamaguchi’s defining performance is Nico Robin in One Piece.

Robin first appeared in the series as Miss All Sunday, before eventually becoming a member of the Straw Hat Pirates. Yamaguchi’s performance has had to encompass Robin’s initially mysterious and reserved personality, her difficult childhood, her intellectual nature and the emotional development that followed her decision to trust the Straw Hats.

The role has continued across the television anime, theatrical films, specials and video games. Yamaguchi has voiced Robin in major films including One Piece Film: Strong World, One Piece Film Z, One Piece Film Gold and One Piece: Stampede. Rotten Tomatoes’ filmography also lists her as Robin in One Piece: Heart of Gold, One Piece: Episode of Luffy, One Piece: 3D2Y and other franchise productions.

Yamaguchi has spoken about how important Robin and Ritsuko have become to her personally after playing both characters for so many years. She has described both characters as remaining in her heart because of the length of time she has spent performing them.

Nurse Joy in Pokémon

Another widely recognizable role is Nurse Joy in Pokémon.

Yamaguchi became one of the Japanese voices associated with Nurse Joy during the long-running anime, taking over the role from Ayako Shiraishi. Her period as Nurse Joy covers substantial portions of the series from the late original-series era through Pokémon Diamond and Pearl, although other Japanese actresses also performed the character at different times.

This is an important example of the difference between a character and a specific voice performer. Nurse Joy is a recurring character identity within the Pokémon world, but several Japanese actresses have voiced her across different periods.

Yamaguchi’s performance was particularly associated with the series during its Kanto-to-Sinnoh era, and she also voiced Nurse Joy in selected Pokémon films and specials.

Vados in Dragon Ball Super

Yamaguchi also voices Vados in Dragon Ball Super.

Vados is an angel associated with Champa, the God of Destruction of Universe 6. The role gave Yamaguchi another opportunity to use a controlled and authoritative performance, contrasting with the more emotional or comedic characters elsewhere in her filmography.

Her work as Vados is frequently included among her major anime credits alongside Robin, Ritsuko and Nurse Joy.

Sonia Wakabayashi in Eureka Seven

In Eureka Seven, Yamaguchi voices Dr. Sonia Wakabayashi, a scientist associated with the Tresor research organization.

Sonia is an adult scientific character whose knowledge of Eureka and the Scub Coral makes her relevant to the series’ larger mystery. Yamaguchi provides the original Japanese performance, while Bridget Hoffman voices Sonia in English.

This is a useful example of why Yamaguchi’s credits should not be confused with English-dub performances. Her work in Eureka Seven is the original Japanese voice, not the English-language dub.

Most Famous Anime Roles

Nico Robin — One Piece

Nico Robin is Yamaguchi’s most internationally recognizable anime role. Robin is an archaeologist and one of the Straw Hat Pirates, known for her intelligence, calm personality and ability to read the ancient Poneglyphs.

Yamaguchi has performed Robin for decades across television, films, specials and games. Her ability to convey Robin’s quiet confidence while still revealing the character’s emotional vulnerability is a major reason the performance has become so closely associated with the character.

Ritsuko Akagi — Neon Genesis Evangelion

Ritsuko Akagi was Yamaguchi’s breakthrough voice role. The character is a scientist and NERV staff member whose professional relationship with Gendo Ikari and personal connection to the Evangelion project place her at the center of the series’ complicated adult storyline.

Yamaguchi’s restrained delivery suits Ritsuko’s analytical personality and contributes to the character’s dramatic impact.

Nurse Joy — Pokémon

Yamaguchi’s work as Nurse Joy introduced her voice to a completely different type of audience. Unlike the darker material of Evangelion, Pokémon allowed her to play a warm and reassuring recurring character.

She was one of several Japanese performers to portray Nurse Joy during the long-running series.

Vados — Dragon Ball Super

Vados showcases Yamaguchi’s ability to play an elegant but powerful character. Her voice performance gives Vados the calm authority expected of an angel while maintaining the character’s playful edge.

Sonia Wakabayashi — Eureka Seven

Sonia is another example of Yamaguchi’s recurring strength with mature female characters, particularly those connected to science, research and the deeper mythology of an anime’s story.

Yuriko Yamaguchi’s Notable Characters

Anime / Project	Character	Year	Role Type
Neon Genesis Evangelion	Ritsuko Akagi	1995	Japanese original voice
Wedding Peach	Kachūsha / Woman Devil	1995	Japanese original voice
Pokémon	Nurse Joy	2000s	Japanese original voice
One Piece	Nico Robin / Miss All Sunday	1999–present	Japanese original voice
Cardcaptor Sakura	Li Fudi	2000	Japanese original voice
Eureka Seven	Sonia Wakabayashi	2005	Japanese original voice
Inuyasha	Shiori’s mother	2000	Japanese original voice
Shaman King	Matilda	2001	Japanese original voice
Fullmetal Alchemist	Sara Rockbell	2003	Japanese original voice
Death Parade	Misaki Tachibana	2015	Japanese original voice
Dragon Ball Super	Vados	2015	Japanese original voice
Aikatsu Friends!	Mai Chōno	2018	Japanese original voice
Evangelion: 3.0+1.0	Ritsuko Akagi	2021	Japanese original voice
Genshin Impact	Rhinedottir	2025–present	Japanese game voice

These are selected highlights rather than a complete filmography. Yamaguchi has many additional credits across television anime, theatrical animation, OVAs, games, narration and other productions. Her agency’s official profile lists a broad selection of her major anime work.

Movies, Television and Other Voice Roles

One Piece Films

Yamaguchi’s Nico Robin performance has extended into a substantial collection of One Piece theatrical productions.

Her film credits include One Piece: The Movie, Dead End Adventure, The Cursed Holy Sword, Baron Omatsuri and the Secret Island, The Giant Mechanical Soldier of Karakuri Castle, Strong World, Film Z, Film Gold and Stampede, among other franchise projects. Her filmography also includes the 2016 television special One Piece: Heart of Gold.

This continuity has helped make Robin’s Japanese voice immediately recognizable across different versions of the franchise.

Evangelion Films

Yamaguchi has also maintained her role as Ritsuko Akagi through the Evangelion film series.

She appears as Ritsuko in The End of Evangelion, Evangelion: 1.0 You Are (Not) Alone, Evangelion: 2.0 You Can (Not) Advance, Evangelion: 3.0 You Can (Not) Redo and Evangelion: 3.0+1.0 Thrice Upon a Time.

Her involvement across both the original television production and the later film continuity makes Ritsuko one of the longest-running characters in her career.

Video Games

Yamaguchi has also developed an extensive career in video games.

MobyGames credits her with 75 credits across 66 games, including major roles connected with One Piece, Neon Genesis Evangelion, Tales of Hearts, Super Robot Wars, Conception, Slayers and other Japanese game productions.

Among her most recognizable game work is Nico Robin in One Piece games and Ritsuko Akagi in Evangelion games. MobyGames records Robin in titles such as One Piece: Oceans of Dreams, One Piece: Pirate Warriors 3, One Piece: Pirate Warriors 4 and One Piece Odyssey.

Her game work demonstrates how her best-known anime performances have remained consistent outside television animation.

Rhinedottir in Genshin Impact

A more recent addition to Yamaguchi’s game career is Rhinedottir, also known as Gold, in Genshin Impact.

In 2025, Yamaguchi was announced as the new Japanese voice performer for Rhinedottir. The character had previously been voiced in Japanese by the late Atsuko Tanaka in earlier material, and the existing past voice lines were not replaced.

This is therefore a particularly notable recent role because it connects Yamaguchi with one of the world’s most prominent modern Japanese-produced video-game franchises.

One Piece: Heroines

Yamaguchi also continues to perform as Nico Robin in current One Piece projects.

The 2026 anime One Piece: Heroines features Yamaguchi as Robin alongside Akemi Okamura as Nami and Maaya Sakamoto as Miucha. Netflix identifies the audio as Japanese original and lists Yamaguchi among the starring cast.

The project demonstrates the remarkable longevity of her association with Robin, more than two decades after she first began voicing the character.

Japanese Original Voice Roles vs English Dubs

Yuriko Yamaguchi’s best-known performances are original Japanese voice performances.

In One Piece, she is the original Japanese voice of Nico Robin. In Neon Genesis Evangelion, she is the original Japanese voice of Ritsuko Akagi. Likewise, her performances as Vados, Nurse Joy and Sonia Wakabayashi are Japanese-language performances created for the original Japanese productions.

English-language versions use different actors. For example, Sonia Wakabayashi is voiced in English by Bridget Hoffman in Eureka Seven.

Yamaguchi has also participated in Japanese-language dubbing and voice-over work, but these performances should not be confused with her original anime roles. Her principal international recognition comes from her work as a Japanese seiyuu rather than from English-language dubbing.

Live-Action and Stage Background

Although Yamaguchi is now primarily recognized as a voice actress and narrator, her career began in stage acting.

She has explained that she was still working as a stage actress until around the age of 30, when the opportunity to audition for Neon Genesis Evangelion changed the direction of her career.

That background is significant because it gave her years of conventional acting experience before she became established in animation. Her voice performances often rely on subtle emotional changes rather than relying solely on distinctive vocal mannerisms.

Her Aoni Production profile also identifies her as an actress and narrator and lists interests including gardening, jam making, hiking and hot yoga, with tango singing among her skills.

Awards and Recognition

Yuriko Yamaguchi does not have a major individual voice-acting award that is consistently documented by the principal industry sources consulted for this profile.

Her professional recognition instead comes largely from the enduring popularity of her characters and her extensive career across major anime and game franchises.

Her appearance as a guest at international anime conventions has also reflected her global recognition. Anime North’s 2019 guest guide described her as the Japanese voice actress known for Nico Robin in One Piece, Nurse Joy in Pokémon, Vados in Dragon Ball Super and Sonia in Eureka Seven.

IMDb currently records one awards nomination for Yamaguchi, while major film databases primarily emphasize her extensive acting and voice credits rather than a long list of individual awards.

Career Highlights

An unexpected transition into voice acting

Yamaguchi did not begin her career intending to become one of anime’s best-known female voice actors. Her transition happened after she was invited to audition for an anime while working as a stage actress.

Ritsuko Akagi became her breakthrough role

Her casting as Ritsuko Akagi in Neon Genesis Evangelion gave her a major entry point into professional voice acting and established her with one of anime’s most respected science-fiction franchises.

Decades as Nico Robin

Her performance as Nico Robin has become the defining role of her career. She has continued playing Robin across the One Piece television anime, films, specials and games.

A wide range of mature female characters

Yamaguchi is particularly effective in roles that require intelligence, authority or emotional restraint. Ritsuko, Robin, Vados and Sonia each demonstrate different aspects of that vocal range.

Successful work in games

Her anime roles have translated into an extensive game career, especially through One Piece and Evangelion. More recent work such as Rhinedottir in Genshin Impact has expanded that legacy into another major game franchise.

A career spanning multiple generations

From Evangelion and Pokémon to One Piece, Dragon Ball Super, modern games and 2026’s One Piece: Heroines, Yamaguchi’s career has remained connected to major productions across several generations of anime fans.

Why Is Yuriko Yamaguchi So Recognizable to Anime Fans?

Yuriko Yamaguchi is recognizable because her voice is attached to several hugely influential anime franchises.

For One Piece viewers, she is the unmistakable Japanese voice of Nico Robin, one of the Straw Hat Pirates and one of the series’ most important female characters. For Evangelion fans, she is Ritsuko Akagi, a central scientist whose role in the story spans the original series and subsequent films.

Her work in Pokémon gives her another connection to a globally recognized franchise through Nurse Joy, while Dragon Ball Super audiences know her as Vados. Eureka Seven adds Sonia Wakabayashi to that list.

What makes her career particularly impressive is the consistency of these performances. Robin has remained with her for decades, while Ritsuko has also followed her from the original 1990s anime into the modern Rebuild of Evangelion films.

Yamaguchi’s own explanation of her career adds another important dimension. She entered voice acting almost by chance after years as a stage actress, meaning that one of anime’s most recognizable female voices emerged from a broader acting background rather than a conventional voice-acting-only career.

Frequently Asked Questions

Who is Yuriko Yamaguchi?

Yuriko Yamaguchi is a Japanese voice actress and narrator born on November 21, 1965, in Osaka, Japan. She is best known for Nico Robin in One Piece and Ritsuko Akagi in Neon Genesis Evangelion.

What is Yuriko Yamaguchi most famous for?

She is most famous for providing the original Japanese voice of Nico Robin in One Piece. Other major roles include Ritsuko Akagi in Neon Genesis Evangelion, Nurse Joy in Pokémon, Vados in Dragon Ball Super and Sonia Wakabayashi in Eureka Seven.

Is Yuriko Yamaguchi the original Japanese voice of Nico Robin?

Yes. Yamaguchi is the original Japanese voice actress for Nico Robin in One Piece. She has performed Robin across the television anime, films, specials and video games.

When did Yuriko Yamaguchi become a voice actress?

Yamaguchi has said that she worked as a stage actress until around the age of 30. She was then invited to audition for an anime, won the role of Ritsuko Akagi in Neon Genesis Evangelion, and subsequently pursued voice acting as her professional path.

Who does Yuriko Yamaguchi voice in Evangelion?

She voices Ritsuko Akagi in the original Neon Genesis Evangelion series, The End of Evangelion, the Rebuild of Evangelion films and related game projects.

Did Yuriko Yamaguchi voice Nurse Joy in Pokémon?

Yes. Yamaguchi was one of the Japanese voice actresses who played Nurse Joy, particularly during substantial portions of the original series and Pokémon Diamond and Pearl period. Other Japanese actresses have also voiced the character at different times.

What games has Yuriko Yamaguchi voiced?

Her game credits include Nico Robin in One Piece games, Ritsuko Akagi in Evangelion games, Sapphire Hearts in Tales of Hearts, and Rhinedottir in Genshin Impact. MobyGames lists 75 credits across 66 games.

Is Yuriko Yamaguchi still voicing Nico Robin?

Yes. She continues to voice Robin in current One Piece projects, including the 2026 anime One Piece: Heroines. Netflix lists Yamaguchi among the Japanese original cast as Robin.