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|Height||167 cm (5 ft 6 in)|
Some of her starring roles are Yao Sakurakouji in Miami Guns, Ran Kotobuki in Super Gals!, Winry Rockbell in Fullmetal Alchemist (first anime), Sei Sato in Maria-sama ga Miteru, Revy in Black Lagoon, Hikari (Dawn) in Pokémon and Seiren/Ellen Kurokawa/Cure Beat in Suite Precure. In video games, she played Paine in Final Fantasy X-2, Junko Enoshima in Danganronpa, Rosie in Valkyria Chronicles, Yukari Takeba in Persona 3 (which has adapted into a film series) and Aqua in Kingdom Hearts.
Though she was in the upper grades of elementary school, she became addicted to anime when she watched Dragon Ball and became a fan of Tōru Furuya who played the role of Yamcha in the anime series. While she was in her second year of high school, she watched Furuya's role in Dragon Quest, and while imitating the characters, she became interested in working as a voice actress.
After graduating from high school, her parents requested a vocational school of voice actors, but were told to go to high school. After graduating from high school, she had the goal of becoming a voice actor in Nihon Kogakuin, but opposed her family. She wanted to get a job related to voice actors and switch to the Department of Acoustics and Arts to become a radio personality. In radio program production training, she mainly practiced personality by taking charge of personality, and was used in subsequent radio conversations.
Though she was a student at the same school, she requested the Mars Girl Audition audition for the radio program Hiroi Oji no Multi Heaven. From high school until now, she had failed several auditions, so finished the test. However, she won the Grand Prix and made a regular appearance on the radio. Later, Shigeru Chiba, who co-starred on the radio, became a member of 81 Produce, in that same period as Chie Chiba and Ryoka Kashiwagi.
In 2007, she expanded the scope of her work, including the dubbing roles of the main character Kanna in The great success of Kanna!. The following year, the first appearance as a voice actress in Drama Battle Royale Gun Mage and The First Stage.
|Fullmetal Alchemist||Winry Rockbell|||
|Gunparade March||Sara Ishida|||
|Hayate the Combat Butler#Hayate x Blade||Jun Kuga|||
|Infinite Stratos||Chifuyu Orimura|||
|Kamen no Maid Guy||Fubuki||web radio|||
|Macross Frontier||Klan Klang|||
|Psychic Detective Yakumo||Makoto Hijikata|||
|Shining Force EXA|||
|True Love Story 3|||
|Title||Role||Voice dub for, notes||Source|
|12 Rounds 2: Reloaded||Sarah Malloy||Cindy Busby|||
|The Adventures of Sinbad||Maeve||Jacqueline Collen|
|Big Mommas: Like Father, Like Son||Jasmine Lee||Portia Doubleday|||
|The Carrie Diaries||Maggie|
|Episodes||Morning Randolph||Mircea Monroe|
|Flower Boys Next Door||Cha Do-hwi|
|The Hole in the Ground||Sarah O'Neill||Seána Kerslake|||
|Kanna's Big Success||Kanna|
|Legally Blondes||Annabelle "Annie" Woods||Camilla Rosso|||
|When in Rome||Beth||Kristen Bell|
|Ice Age: Dawn of the Dinosaurs||Ellie|||
|Ice Age: A Mammoth Christmas|||
|Ice Age: Continental Drift|||
|Ice Age: Collision Course|||
|RWBY||Pyrrha Nikos||Volumes 1,2 and 4 only|||
|Tinker Bell series||Rosetta|
- "Hai Tatchi!" (Opening for Pokémon: Diamond and Pearl, sung with Rika Matsumoto)
- "Hai Tatchi! 2009" (Opening song of Gekijoban Pocket Monsters Diamond and Pearl: Arceus Chōkoku no Jikū e, and Opening for Pokémon: Diamond and Pearl, sung with Rika Matsumoto)
- "女性俳優：81produce – 豊口めぐみ Megumi Toyoguchi" [Actresses – 81 Produce – Megumi Toyoguchi]. 81 Produce (in Japanese). Archived from the original on October 16, 2012. Retrieved September 1, 2016.
- 声優さん出演リスト 個別表示：豊口めぐみ [Voice actor's appearance list individual display: Megumi Toyoguchi]. Voice Artist Database (in Japanese). GamePlaza-HARUKA-. July 31, 2016. Retrieved August 31, 2016.
- Doi, Hitoshi (August 31, 2016). "Search results for "Toyoguchi Megumi" in ALL database". Hitoshi Doi's Seiyuu Database. Retrieved August 31, 2016.
- Taniguchi, Hiroshi et al. "The Official Art of Canvas2 ~Nijiiro no Sketch~". (November 2006) Newtype USA. pp. 101-107.
- Yuki, Masahiro. "The Official Art of .hack//Roots". (May 2007) Newtype USA. pp. 101-107.
- "Black Lagoon's 3rd Anime to be Video Project in 2010 (Update 2)". Anime News Network. July 16, 2009. Retrieved September 1, 2016.
- "Macross F Concerts Get TV Special Before BD/DVD Release". Anime News Network. October 18, 2011. Retrieved September 1, 2016.
- "Akikan! Romance Light Novels Get Manga in Ultra Jump". Anime News Network. August 19, 2008. Retrieved September 1, 2016.
- "Viper's Creed Sci-Fi Anime's Pilot Footage Streamed (Updated)". Anime News Network. November 14, 2008. Retrieved September 1, 2016.
- "Gundam Unicorn's Japanese Cast, English Site Unveiled". Anime News Network. August 22, 2009. Retrieved September 1, 2016.
- "Sengoku Otome Historical Pachinko Game Gets TV Anime". Anime News Network. February 4, 2011. Retrieved September 1, 2016.
- Loo, Egan (September 13, 2011). "Bleach Anime to Enter Shinigami Daikō Shōshitsu Arc". Anime News Network. Retrieved May 15, 2019.
- "Megumi Toyoguchi, Kousuke Toriumi, Michiko Neya Join Cross Ange Anime's Cast". Anime News Network. September 2, 2014. Retrieved September 1, 2016.
- "Plastic Memories Anime's 2nd Video Introduces Characters". Anime News Network. January 30, 2015. Retrieved September 1, 2016.
- "That Time I Got Reincarnated as a Slime Anime's Video Reveals Cast, Half-Year Run". Anime News Network. June 8, 2018. Retrieved June 8, 2018.
- "Dōkyonin wa Hiza, Tokidoki, Atama no Ue Anime's New Promos Unveil More Cast". Anime News Network. Retrieved December 12, 2018.
- "Macross FB7 Crossover Anime Film's Trailer Streamed". Anime News Network. September 23, 2012. Retrieved September 1, 2016.
- "Persona 3 the Movie #1's Promo, Title, Date, Staff, Cast Revealed". Anime News Network. March 28, 2013. Retrieved January 9, 2015.
- "Persona 3 Films' New Visual, Finale Event, Blu-ray/DVD Info Unveiled". Anime News Network. August 29, 2015. Retrieved September 1, 2016.
- "電撃 – SNKの人気キャラが集結するSTG！ 『NEOGEO HEROES』7月29日に発売". dengekionline.com (in Japanese). May 11, 2010. Retrieved February 24, 2020.
- Harada, Katsuhiro [@Harada_TEKKEN] (April 23, 2013). "はじめまして！ずばり州光の声優は豊口めぐみさんです。Wikipediaは素晴らしい情報源ですが、間違いもかなり多いので注意ですね。 RT @yatsuhashi009 初めまして原田さん。質問なのですがwikiをみると州光の声優さんが桑島法子さんとなってますが本当なのでしょうか？" (Tweet). Retrieved October 18, 2019 – via Twitter.
- "ロストディメンション公式サイト - Lost Dimension Official Site" (in Japanese). Retrieved April 29, 2015.
- "Persona 4 Arena Sequel's Story, Cast Unveiled With Trailer". Anime News Network. September 26, 2013. Retrieved September 1, 2016.
- "Infinite Stratos Gets New Browser, Smartphone Game With New Characters". Anime News Network. 2017-10-06. Retrieved 2017-10-09.
- 【DFFオペラオムニア】パイン (in Japanese). November 12, 2018. Retrieved March 30, 2019 – via YouTube.
- Romano, Sal (August 29, 2019). "Death March Club 'Jennu' voice actor reveal video". Gematsu. Retrieved August 29, 2019.
- "１２ラウンド／リローデッド". Star Channel. Retrieved October 28, 2019.
- "ビッグママ・ハウス３[吹]". Star Channel. Retrieved July 2, 2019.
- "ホール・イン・ザ・グラウンド". Yahoo Auctions. Retrieved March 11, 2020.
- "キューティ・ブロンド３[吹]". Star Channel. Retrieved September 25, 2019.
- "アイス・エイジ3 ティラノのおとしもの". Fox Japan. Retrieved August 12, 2020.
- "アイス・エイジ クリスマス". Fox Japan. Retrieved August 12, 2020.
- "アイス・エイジ４ パイレーツ大冒険". Star Channel. Retrieved October 28, 2019.
- "アイス・エイジ５ 止めろ！惑星大衝突". Star Channel. Retrieved October 28, 2019.
- "Dogs: Prelude's Shirow Miwa to Draw RWBY Manga". Anime News Network. October 17, 2015. Retrieved September 1, 2016.