Mami Koyama is a veteran Japanese voice actress and narrator with Aoni Production who voiced Queen Serenity and Esmeraude across the Sailor Moon franchise.
Koyama has voiced multiple parts across the Sailor Moon franchise: Queen Serenity in Sailor Moon Crystal, the villainess Esmeraude in the original 1990s anime, and the minor character Garoben, also in Crystal. Moving between the serene authority of Queen Serenity and Esmeraude's flamboyant menace shows off the range she is known for across her wider career.
Koyama's long resume includes the title role in Magical Princess Minky Momo, Lunch in the original Dragon Ball, and the swordswoman Shaina in Saint Seiya, alongside Arale Norimaki in Dr. Slump. She later took on Kaguya Otsutsuki in Naruto: Shippuden and Big Mom in One Piece, while earlier work included Balalaika in Black Lagoon and Eva Heinemann in Monster. Her film credits include Kei in Akira and the older Chiyoko Fujiwara in Millennium Actress.
Among her most recognized parts, Koyama voices Big Mom in One Piece and Kaguya Otsutsuki in Naruto: Shippuden, along with Lunch in the original Dragon Ball. Her long resume spans decades of major anime alongside her Sailor Moon roles.
Koyama voices Queen Serenity in Sailor Moon Crystal, the villainess Esmeraude in the original 1990s anime, and the minor character Garoben, also in Crystal. Moving between Queen Serenity's serene authority and Esmeraude's flamboyant menace shows off her range.
Koyama's resume includes the title role in Magical Princess Minky Momo, the swordswoman Shaina in Saint Seiya, and Arale Norimaki in Dr. Slump. These roles date back through her decades-long career with Aoni Production.
Koyama's film credits include Kei in Akira and the older Chiyoko Fujiwara in Millennium Actress. Both are among the notable movie roles alongside her extensive TV anime work.
Koyama, born in 1955, has been active with Aoni Production since 1973. That decades-long career runs from early roles like Lunch in Dragon Ball through to Big Mom in One Piece.

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