Akemi Okamura

Akemi Okamura is one of Japan’s established voice actresses and narrators, with a career spanning more than three decades across anime, animated films, video games, television and dubbing. Born in Tokyo in 1969, she has become internationally recognized above all for her long-running performance as Nami in One Piece, a role she has voiced since the anime’s early years. She has also brought distinctive performances to characters including Fio Piccolo in Porco Rosso, Risa Koizumi in Lovely Complex, Hinoe in Natsume’s Book of Friends, Mayaya in Princess Jellyfish and Paninya in Fullmetal Alchemist: Brotherhood.

Her career is notable because it extends well beyond one famous character. Okamura has worked in major anime franchises, Studio Ghibli films, Japanese-language dubbing, video games and television animation. In 2024, her contribution to the profession was recognized with the Kei Tomiyama and Kazue Takahashi Award at the 18th Seiyu Awards.

Who Is Akemi Okamura?

Akemi Okamura (岡村明美) is a Japanese voice actress and narrator affiliated with Mausu Promotion. She was born on March 12, 1969, in Tokyo, Japan, and has generally been credited professionally under the name Akemi Okamura.

For international anime audiences, her defining role is Nami in One Piece. Okamura is the original Japanese voice of the Straw Hat Pirates’ navigator, and her performance has continued across the television anime, theatrical films, specials and numerous video games. Netflix also lists her among the principal Japanese cast of One Piece and its 2026 spin-off One Piece: Heroines.

At the same time, reducing her career to Nami overlooks the breadth of her work. Her film debut came in Hayao Miyazaki’s Porco Rosso, where she voiced Fio Piccolo, while later projects demonstrated her ability to move between comedy, drama, fantasy, action and family animation.

Early Life and Career

Okamura’s route into professional voice acting followed formal training rather than an immediate television breakthrough. Biographical records state that she graduated from the Tokyo Announcement Academy in 1990 before continuing her education at the Mausu Promotion voice-actor training school. She became a fully contracted professional in 1992.

That same year brought one of the most significant early opportunities of her career. Okamura was selected to play Fio Piccolo in Studio Ghibli’s Porco Rosso. Studio Ghibli’s official production page lists Okamura among the film’s Japanese voice cast and confirms the movie’s 1992 release.

Starting a professional career with a Studio Ghibli feature gave Okamura an unusually strong foundation. Fio is a young aircraft engineer whose intelligence, confidence and enthusiasm make her an important part of the film’s story. The role also established Okamura as a performer capable of giving animated characters a natural, energetic personality rather than simply supplying dialogue.

Voice Acting Career

During the 1990s, Okamura built experience across television animation, OVAs, films and games. Among her early and notable credits were roles such as Nokoru Imonoyama in CLAMP School Detectives, Kasumi Fujii in Sakura Wars, Anko Uehara in Great Teacher Onizuka, and Mito Freecss in Hunter × Hunter.

The biggest turning point came in 1999, when she began voicing Nami in One Piece. The role became the central association of her career and eventually made her voice recognizable to generations of anime viewers.

Okamura’s performance has remained closely tied to Nami’s development. The character can be sarcastic, frightened, greedy, compassionate, clever and fiercely determined, requiring considerably more range than her comedic moments might suggest. Okamura’s ability to shift between humor and emotional drama has been particularly important during the series’ more serious storylines.

There was one temporary interruption to her work as Nami. Contemporary character-credit records document that Wakana Yamazaki substituted for Okamura during episodes 70–78 in 2001, while Okamura was away during pregnancy. Okamura subsequently returned to the role.

Her career outside One Piece continued to expand throughout the 2000s. She voiced Risa Koizumi in Lovely Complex, Hinoe in Natsume’s Book of Friends, Mayaya in Princess Jellyfish, Paninya in Fullmetal Alchemist: Brotherhood, Mathilde Saint-Omer in Shakugan no Shana, and several other characters across different genres.

In the 2010s and 2020s, she continued working in established franchises and newer productions. Her credits include Akemi Hinazuki in ERASED, Rin in The Idaten Deities Know Only Peace, Hoshiiwa in HappinessCharge PreCure!, and Kaoru Kiryuu in Power of Hope: Pretty Cure Full Bloom.

Most Famous Anime Roles

Nami — One Piece

Nami is unquestionably Okamura’s signature character. She voices the navigator of the Straw Hat Pirates in the original Japanese version of the One Piece anime and related productions.

Her performance covers an unusually broad emotional range. Nami can be comedic and expressive in one scene, then frightened, angry or deeply emotional in another. That flexibility has helped make Okamura’s interpretation an important part of the character’s identity.

Her Nami performance also extends into the franchise’s theatrical movies. Netflix’s Japanese listing for One Piece Film Red, for example, includes Akemi Okamura among the original Japanese cast.

Fio Piccolo — Porco Rosso

Fio was Okamura’s breakthrough film role. She played the young aircraft designer in Hayao Miyazaki’s 1992 Porco Rosso, one of Studio Ghibli’s most distinctive aviation adventures. Studio Ghibli officially credits Okamura in the Japanese cast.

Risa Koizumi — Lovely Complex

In Lovely Complex, Okamura voiced Risa Koizumi, a central character in the romantic comedy. The role allowed her to move away from the adventurous energy associated with Nami and demonstrate a different style of comic timing and emotional performance.

Hinoe — Natsume’s Book of Friends

Okamura’s performance as Hinoe in Natsume’s Book of Friends represents another side of her range. Hinoe is an important recurring supernatural character, and Okamura continued the role across the anime and related film and game projects. Her game credits include Hinoe in Natsume’s Book of Friends: Hazuki no Shirushi.

Mayaya — Princess Jellyfish

Mayaya in Princess Jellyfish is another memorable supporting performance. The character’s unusual personality and comedic qualities gave Okamura another opportunity to demonstrate the versatility that has defined her career outside One Piece.

Akemi Okamura’s Notable Characters

Anime / Project	Character	Year	Role Type
Porco Rosso	Fio Piccolo	1992	Japanese original voice
CLAMP School Detectives	Nokoru Imonoyama	1997	Japanese original voice
One Piece	Nami	1999–present	Japanese original voice
Great Teacher Onizuka	Anko Uehara	1999	Japanese original voice
Lovely Complex	Risa Koizumi	2007	Japanese original voice
Natsume’s Book of Friends	Hinoe	2008–	Japanese original voice
Fullmetal Alchemist: Brotherhood	Paninya	2009	Japanese original voice
Princess Jellyfish	Mayaya	2010	Japanese original voice
Kamisama Kiss	Kamehime	2012	Japanese original voice
ERASED	Akemi Hinazuki	2016	Japanese original voice
The Idaten Deities Know Only Peace	Rin	2021	Japanese original voice
Power of Hope: Pretty Cure Full Bloom	Kaoru Kiryuu	2023	Japanese original voice
One Piece: Heroines	Nami	2026	Japanese original voice

The table represents selected recognizable credits rather than a complete filmography. Okamura’s recorded work spans considerably more anime, films, OVAs, games and television productions.

Movies, Television and Other Voice Roles

Okamura has remained particularly active in One Piece theatrical productions. Her Nami credits include One Piece: The Movie, Clockwork Island Adventure, Chopper’s Kingdom, Dead End Adventure, The Cursed Holy Sword, Baron Omatsuri and the Secret Island, The Desert Princess and the Pirates, Strong World, Film Z, Film Gold, Stampede and Film Red. Her film work therefore represents a major extension of the television role rather than a separate one-off appearance.

Her career also includes work in video games. MobyGames records 96 credits across 80 games, illustrating how frequently her voice work has crossed from television and film into interactive entertainment.

Among her notable game performances are Sheena Fujibayashi in Tales of Symphonia, Cornelia in Fire Emblem: Three Houses and Fire Emblem Warriors: Three Hopes, Nami in multiple One Piece games, Lolo in Baten Kaitos, and Jessica Robins in Another Code: Recollection.

Her One Piece game work includes titles such as One Piece: Burning Blood, One Piece: World Seeker, One Piece: Pirate Warriors 4 and One Piece Odyssey. This continuity has allowed Okamura to remain associated with Nami across several different forms of the franchise.

Japanese Original Voice vs English Dub

It is important to distinguish Okamura’s work from the English-language performances of the same characters.

For One Piece, Akemi Okamura is Nami’s original Japanese voice actress. The English versions have used other performers, including Kerry Williams for the 4Kids dub and Luci Christian for the Funimation English dub.

The same distinction applies to the Netflix live-action adaptation. Emily Rudd portrays Nami on screen, while Okamura provides Nami’s Japanese-language voice for the live-action series. Netflix itself confirmed that the original Japanese One Piece cast returned to voice their respective characters in the live-action adaptation, including Okamura as Nami.

That means Okamura did not physically portray Nami in the live-action series. Her contribution is a Japanese dubbing performance, preserving the connection between the original anime cast and the live-action adaptation.

Awards and Recognition

One of the most important honors of Okamura’s career came in 2024, when she received the Kei Tomiyama and Kazue Takahashi Award at the 18th Seiyu Awards.

The official Seiyu Awards describes the category as recognizing voice actors who have been active across a variety of areas, including appearances in productions. Okamura shared the award with fellow voice actor Nozomu Sasaki.

The recognition is significant because it reflects the breadth of Okamura’s career rather than simply one successful role. By that point, she had already spent more than 30 years working across anime, films, games, narration and dubbing.

Career Highlights

Several achievements define Akemi Okamura’s place in Japanese voice acting.

A Studio Ghibli debut: Her professional breakthrough came with Fio Piccolo in Porco Rosso, giving her an early connection to one of Japan’s most respected animation studios.

A defining long-running character: Her portrayal of Nami has continued from the beginning of the One Piece television anime into movies, games, specials and the Japanese dub of the live-action series. Netflix continues to list her among the Japanese cast of One Piece, while One Piece: Heroines also credits her as Nami.

A broad range of characters: From the energetic Fio and Nami to Risa Koizumi, Hinoe, Mayaya, Paninya and Akemi Hinazuki, Okamura has repeatedly moved between comedy, drama, fantasy, adventure and family-oriented animation.

A major video-game presence: Her extensive game credits demonstrate that her work is not limited to television anime. Characters such as Sheena Fujibayashi and Cornelia have made her recognizable among game audiences as well.

Recognition from the voice-acting industry: The 2024 Kei Tomiyama and Kazue Takahashi Award formally recognized her contribution and long-running activity across the profession.

For anime fans, however, her greatest achievement may be the consistency of her Nami performance. Very few performers remain so closely connected to one major character while simultaneously building a substantial body of work elsewhere.

Frequently Asked Questions

Who is Akemi Okamura?

Akemi Okamura is a Japanese voice actress and narrator from Tokyo. She is best known internationally for providing the original Japanese voice of Nami in One Piece. She has also worked in anime, animated films, video games, television and dubbing.

What character is Akemi Okamura most famous for?

She is most famous for Nami in One Piece. Okamura has voiced Nami in the original Japanese anime and in numerous movies, specials and video games.

Is Akemi Okamura the English voice of Nami?

No. Okamura is the original Japanese voice of Nami. English versions have used different actresses, including Kerry Williams and Luci Christian.

Did Akemi Okamura voice Nami in the Netflix live-action One Piece?

Yes, but she does not portray Nami on screen. Emily Rudd plays Nami in the live-action series, while Akemi Okamura provides the Japanese-language dub voice. Netflix confirmed the return of the original Japanese One Piece cast for the live-action adaptation.

What was Akemi Okamura’s first major voice role?

Her major professional debut was Fio Piccolo in Studio Ghibli’s 1992 film Porco Rosso. Studio Ghibli’s official film page lists her among the Japanese voice cast.

What other anime is Akemi Okamura known for?

Beyond One Piece, notable credits include Risa Koizumi in Lovely Complex, Hinoe in Natsume’s Book of Friends, Mayaya in Princess Jellyfish, Paninya in Fullmetal Alchemist: Brotherhood, Akemi Hinazuki in ERASED and Rin in The Idaten Deities Know Only Peace.

Has Akemi Okamura worked in video games?

Yes. Her game career includes Nami in numerous One Piece titles, Sheena Fujibayashi in Tales of Symphonia, Cornelia in Fire Emblem: Three Houses and Fire Emblem Warriors: Three Hopes, and Hinoe in Natsume’s Book of Friends: Hazuki no Shirushi.

Has Akemi Okamura won an award?

Yes. In 2024, she received the Kei Tomiyama and Kazue Takahashi Award at the 18th Seiyu Awards, recognizing her work across multiple areas of voice acting.