Ichirō Ōkouchi (大 河内 一楼), born March 28, 1968, is a Japanese screenwriter and novelist. A graduate of the Waseda University School of Human Sciences, Ōkouchi is best known for his collaboration with director Gorō Taniguchi for the composition of the story and script for Sunrise’s original production, Code Geass: Lelouch of the Rebellion in 2006 and its Code Geass: Lelouch of the Rebellion R2 suite in 2008.

Primary works:

Code Geass – Lelouch of the Rebellion – manga / Screenwriter
Code Geass – Lelouch of the Rebellion – Anime / Author
Valvrave the liberator – Anime / Author
Kabaneri of the Iron Fortress – Anime / Author
Princess Principal – Anime / Author
Lupine III – Part 5 – Anime / Author
Code Geass – Lelouch of the Resurrection – Anime / Writer
Kabaneri of the Iron Fortress – The Battle of… – Anime / Writer