Momoyo Koyama

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Momoyo Koyama
Native name
小山 百代
Born (1995-11-30) November 30, 1995 (age 23)
Hokkaido, Japan
OccupationTheatrical actress, voice actress, singer
Years active2007–present
AgentStardust Promotion

Momoyo Koyama (Japanese: 小山 百代, Hepburn: Koyama Momoyo, born November 30, 1995)[1] is a Japanese theatrical actress, voice actress and singer from Sapporo, Hokkaido, who is affiliated with Stardust Promotion.[2][3] She is known for playing Sailor Mercury in two stage play adaptations of Sailor Moon in 2014 and 2015, and for playing Karen Aijō, the protagonist of the multimedia franchise Revue Starlight. She is also a member of the musical group SoundOrion [ja].[4]


Koyama was born in Hokkaido on November 30, 1995.[1] Her mother is a nursery teacher.[5] From an early age, she had an interest in acting, particularly after becoming familiar with stage play adaptations of the manga series Sailor Moon; it would become her dream to perform in a play of the series.[5]

Koyama became affiliated with the Sapporo-based acting office Egg in 2007, and she would begin performing in several theatrical plays in Hokkaido.[6] In 2014, she was cast as Sailor Mercury in the stage musical Sailor Moon: Petite Étrangère,[7] and she would reprise the role the following year in the stage musical Sailor Moon: Un Nouveau Voyage.[8] At some point in her career, as she was unsure of what her future held, she considered retiring from acting and pursuing a different career.[5] Following a recommendation from the director of the Sailor Moon stage plays, who was surprised to hear that she was not a voice actress, she decided to try out voice acting.[5] After passing an audition held by the talent agency Stardust Promotion, she became affiliated with them in 2017 and moved to Tokyo.[3][5]

In 2017, Koyama was cast as Karen Aijō, the protagonist of the multimedia franchise Revue Starlight.[9] Her participation in the series began when she played Karen in the franchise's stage play, which was initially performed at the AiiA 2.5 Theater in Tokyo; she would then reprise the role in the 2018 anime television series.[3][9] To promote the series, she appeared at panels at C3 AFA Singapore, and CharaExpo USA in 2018.[10][11] She has also been cast as the character Haruka Shima in the multimedia franchise Onsen Musume.[12] In 2019, she and two other voice actresses from Hokkaido, Miharu Hanai and Reia Hayasaka, started hosting a radio program on STV Radio.[2][13]


Stage plays[edit]

List of performances in stage plays
Year Title Role Notes Source
2013 KobuTa Run De Boo [14]
2014 Pretty Girl Sailor Moon: Petite Étrangère Ami Mizuno/Sailor Mercury [7]
2015 Pretty Girl Sailor Moon: Un Nouveau Voyage Ami Mizuno/Sailor Mercury [7]
2017 Shōjo Kageki Revue Starlight: The LIVE #1 Karen Aijō [9]
2018 Shōjo Kageki Revue Starlight: The LIVE #1 revival Karen Aijō [3]


List of voice performances in anime
Year Title Role Notes Source
2017 NTR: Netsuzou Trap As part of SoundOrion Ending theme episodes 4-6 [4]
2018 Revue Starlight Karen Aijō [9]

Video games[edit]

List of performances in video games
Year Title Role Notes Source
2018 Onsen Musume Haruka Shima [12]
2018 Shōjo Kageki Revue Starlight: Re LIVE Karen Aijō [15]


  1. ^ a b Momoyo Koyama [@koyamamomoyo] (November 30, 2017). 本日、11月30日で 22歳になりました✌🏻✌🏻 お祝いメッセージ ありがとうございます! #小山百代生誕祭2017 の、タグも全部 目を通しました😭✨嬉しい… 22歳、感謝の気持ちを忘れずに 笑顔で楽しい毎日にするぞ〜! 22歳の私も、 宜しくお願いします(*'ω'*) (Tweet) (in Japanese). Retrieved August 14, 2019 – via Twitter.
  2. ^ a b "北海道出身の若手声優が北海道の言葉でトークする!バラエティ番組 「なまらぶ♡」" (in Japanese). Sapporo Television Broadcasting. Retrieved June 29, 2019.
  3. ^ a b c d "STARDUST - スターダストプロモーション - 小山百代のプロフィール" (in Japanese). Stardust Promotion. Retrieved June 29, 2019.
  4. ^ a b Kobayashi, Wataru (July 13, 2017). "NTR: Netsuzou Trap Ending Theme for Episode 4-6 Decided". MANGA.TOKYO. Retrieved August 14, 2019.
  5. ^ a b c d e "「小山百代」声優インタビュー&ミニグラビア【声優図鑑】" (in Japanese). Kadokawa Corporation. July 6, 2018. Retrieved June 29, 2019.
  6. ^ "Casting office Egg profile" (in Japanese). Casting office Egg.[permanent dead link]
  7. ^ a b c "ミュージカル Petite Etrangere : 海外公演:美少女戦士セーラームーン 25周年プロジェクト公式サイト" (in Japanese). Retrieved June 29, 2019.
  8. ^ "ミュージカル「美少女戦士セーラームーン」-Un Nouveau Voyage-" (in Japanese). Retrieved June 29, 2019.
  9. ^ a b c d Hodgkins, Crystalyn (April 30, 2017). "Bushiroad Reveals Revue Starlight Franchise With Stage Musical, TV Anime Projects" (in Japanese). Anime News Network. Retrieved June 29, 2019.
  10. ^ Pineda, Rafael Antonio (October 25, 2018). "C3 AFA Singapore Holds Revue Starlight Talk Event". Anime News Network. Retrieved June 29, 2019.
  11. ^ Pineda, Rafael Antonio (October 31, 2018). "3 Revue Starlight Actresses Attend CharaExpo USA in California". Anime News Network. Retrieved June 29, 2019.
  12. ^ a b "四万治佳 | 温泉むすめ公式サイト" (in Japanese). Enbound Inc. Retrieved June 29, 2019.
  13. ^ Momoyo Koyama [@koyamamomoyo] (April 1, 2019). 【情報解禁】 4月新番組「なまらぶ♡」 花井美春さん 早坂領晏さん 私、小山百代の3人で パーソナリティを努めます📻 STVラジオ ニコニコチャンネル ラジオクラウド で 放送&配信されますよ🐄✨ 道産子3人のラジオ これからの展開をお楽しみに! 宜しくお願いします…🌸 (Tweet) (in Japanese). Retrieved August 14, 2019 – via Twitter.
  14. ^ "<こぶたランデブー>" (in Japanese). Casting office Egg. Retrieved June 29, 2019.
  15. ^ Hodgkins, Crystalyn (June 24, 2018). "Shojo Kageki Revue Starlight Franchise Gets Smartphone Game". Anime News Network. Retrieved June 29, 2019.

External links[edit]