Ryōta Yamaguchi

Ryōta Yamaguchi (山口 亮太, Yamaguchi Ryōta; born March 2, 1969) is a Japanese anime screenwriter often associated with Studio Deen, Toei Animation, and Sunrise.

He penned a number of scripts for Sunrise's anime TV series The Vision of Escaflowne, as well as writing the movie version, Escaflowne: A Girl in Gaea with director Kazuki Akane. He also worked on scripts for the 2002 Kanon anime television series.

His other major works include Ranma ½, Sailor Moon Sailor Stars, Cutey Honey Flash, Digimon Savers, DokiDoki! PreCure, and Blue Exorcist.

Anime

Television

• series head writer denoted in bold
• Madö King Granzört (1989): as Shizumu Higa
• Mashin Hero Wataru 2 (1991): as Shizumu Higa
• Mama wa Shōgaku 4 Nensei (1992)
• Ranma ½ Nettohen (1992)
• Super Zugan (1992–1993)
• Shippū! Iron Leaguer (1993–1994)
• Mobile Fighter G Gundam (1994–1995)
• Zenki (1995)
• Sailor Moon SuperS (1995–1996)
• Kuma no Putaro (1995–1996)
• The Vision of Escaflowne (1996)
• Sailor Moon Sailor Stars (1996–1997)
• Revolutionary Girl Utena (1997): as Noboru Higa
• You’re Under Arrest (1993–1996)
• Don’t Leave Me Alone, Daisy (1997)
• Cutie Honey Flash (1997–1998)
• Cowboy Bebop (1998)
• Nightwalker: The Midnight Detective (1998)
• Shadow Skill (1998)
• Kocchi Muite! Miiko (1998–1999)
• Hatsumei Boy Kanipan (1998–1999)
• Chō Hatsumei Boy Kanipan (1999)
• I’m Gonna Be An Angel! (1999)
• Medabots (1999–2000)
• Great Teacher Onizuka (1999–2000)
• Hunter × Hunter (1999–2001)
• Ghost Stories (2000–2001)
• You’re Under Arrest 2 (2001)
• UFO Baby (2001)
• Kanon (2002)
• One Piece (2002–2003)
• Duel Masters (2002–2003)
• Crush Gear Nitro (2003–2004)
• Diamond Daydreams (2004)
• Zukkoke Sanningumi Kusunoki Yashiki no Guruguru-sama (2004)
• Tetsujin 28-go (2004)
• Duel Masters Charge (2004–2006)
• Mushiking: The King of Beetles (2005–2006)
• Zoids: Genesis (2005–2006)
• Project Blue Earth SOS (2006)
• Happiness! (2006)
• Digimon Data Squad (2006–2007)
• Kono Aozora ni Yakusoku o (2007)
• Zenmai Zamurai (2007)
• Kyo Kara Maoh! Third Series (2008)
• Psychic Squad (2008)
• Hakuoki ~Shinsengumi Kitan~ (2010)
• Blue Exorcist (2011)^[1]
• DokiDoki! PreCure (2013–2014)^[2]
• Gaist Crusher (2013–2014)
• Shōnen Maid (2016)
• Future Card Buddyfight Triple D (2016–2017)
• Cardfight!! Vanguard Prime (2018–2019)
• Saint Seiya: Saintia Shō (2018–2019)
• Kochoki (2019)^[3]
• Cardfight!! Vanguard Gaiden if (2020)
• Catch! Teenieping (2021–)
• Digimon Beatbreak (2025)^[4]

OVAs

• series head writer denoted in bold
• Madö King Granzört: An Adventure Story (1992)
• Ranma ½
  • OVA (1993–1994)
  • Special (1994–1995)
  • Super (1995–1996)
  • Nightmare! Incense of Spring Sleep (2008)
• Tekken: The Motion Picture (1998)
• Gosen Zosan e (1998–1999)
• Oni-Tensei (2000)
• Arcade Gamer Fubuki (2002–2003)
• Mizuiro (2003)

Films

• Ranma ½
  • Big Trouble in Nekonron, China (1991)
  • Nihao, My Concubine (1992)
  • Super Indiscriminate Decisive Battle! Team Ranma vs. the Legendary Phoenix (1994)
• Sailor Moon SuperS: The Movie (1995)
• Cutie Honey Flash: The Movie (1997)
• Escaflowne (2000)
• Digimon Data Squad: Ultimate Power! Activate Burst Mode!! (2006)
• DokiDoki! PreCure the Movie: Mana’s Getting Married!? The Dress of Hope Tied to the Future! (2013)

Live action

Television

• Kyuukyuu Sentai GoGoFive (1999–2000)
• Mirai Sentai Timeranger (2000)
• Sengoku Basara: Midnight Party (2012)

Films

• Mirai Sentai Timeranger vs. GoGoFive (2001)
• Sengoku Basara: Midnight Party Remix (2012)