Hiroshi Ōnogi

is a Japanese screenwriter and novelist focusing on anime productions.

Ōnogi attended Keio University in the same years as Macross character designer Haruhiko Mikimoto and creator Shōji Kawamori, both of whom he would first collaborate with in The Super Dimension Fortress Macross.

Filmography

• The Super Dimension Fortress Macross (1982), Scenario
• The Super Dimension Century Orguss (1983), Script
• Heavy Metal L-Gaim (1984), Script
• Mobile Suit Zeta Gundam (1985), Script
• Hey! Bunbuu (1985), Script
• AD Police (1999), Script (ep 2, 5), Sci-Fi Adviser
• Earth Girl Arjuna (2001), Series Composition, Script
• The Daichis - Earth Defence Family (2001), Script (ep 0, 8, 11)
• The Siamese - First Mission (2001), Scenario
• Magical Witchland (2001), 2D Script Writer
• RahXephon (2002), Screenplay (ep 14, 21–22, 26)
• Heat Guy J (2002), Screenplay (ep 2, 6, 8, 11, 12)
• Mobile Suit Gundam Seed (2002), Scenario
• Macross Zero (2002), Script
• ' (2003), Screenplay
• Submarine 707R (2003), Script
• Area 88 (2004), Script
• ' (2004), Script
• Mobile Suit Gundam Seed Destiny (2004), Script
• Doraemon (2005–present), Script
• Aquarion (2005), Series Composition, Screenplay (5, 7, 9, 12, 13, 15, 19, 22, 23, 25, 26)
• Eureka Seven (2005), Script (ep 8, 11, 17, 21, 25, 31, 37, 40, 43, 46)
• Noein - to your other self (2005), Series Composition, Script (ep 5, 11, 15, 19, 23, 24)
• ' (2006), Screenplay
• Kekkaishi (2006), Series Composition
• Toward the Terra (2007), Script (ep 11, 13, 23, 24)
• The Skull Man (2007), Script (ep 3, 4, 8, 11)
• ' (2007), Series Composition
• Aquarion (2007), Screenplay
• Mnemosyne - Mnemosyne no Musume-tachi (2008), Screenplay
• Birdy the Mighty Decode (2008), Series Composition
• ' (2008), Script (ep 22, 23)
• ' (2008), Screenplay
• Shugo Chara!! Doki— (2008), Series Composition
• ' (2009), Series Composition
• ' (2009), Series Composition
• Shangri-La (2009), Series Composition
• Seisen Cerberus: RyÅ«koku no Fatalite (2016), Series Composition
• GeGeGe no Kitarō (2018), Series Composition
• Phantasy Star Online 2: Episode Oracle (2019), Series Composition
• How a Realist Hero Rebuilt the Kingdom (2021), Script
• D_Cide Traumerei the Animation (2021), Script
• Akuma-kun (2023), Series Composition
• Blue Archive: The Animation (2024), Series Composition
• Backstabbed in a Backwater Dungeon (2025), Series Composition

Bibliography

Ōnogi has adapted several television shows into novels. A few of these are listed below.

• '
• Genesis of Aquarion
• RahXephon