Keiichi Hasegawa
Writing · Writer · Screenplay · Script
Born Feb 1, 1962 · Atami, Shizuoka, Japan
Active 1971–present
Keiichi Hasegawa is a Japanese screenwriter from Atami, Japan.
Filmography
No. 1 Sentai Gozyuger: Polar Beginning (2026) — WriterNo. 1 Sentai Gozyuger (2025) — WriterAbyssalis Revelation: Lachesis (2025) — WriterGridman Universe (2023) — ScreenplaySSSS.DYNAZENON (2021) — Writer · Series CompositionSSSS.GRIDMAN (2018) — Writer · Series CompositionRage of Bahamut (2014) — Series Composition · WriterUltraman Ginga (2013) — Writer · Creator009-1: The End of the Beginning (2013) — WriterKamen Rider W Returns: Kamen Rider Accel (2011) — Drunken Man · WriterSuperior Ultra 8 Brothers (2008) — WriterGraveyard Kitaro (2008) — ScriptCackling Kitarou (2007) — WriterUltraman Mebius (2006) — WriterUltraman Mebius & Ultra Brothers (2006) — WriterUltraman Nexus (2004) — Series Composition · ScreenplayAstro Boy (2003) — WriterGodzilla, Mothra and King Ghidorah: Giant Monsters All-Out Attack (2001) — ScreenplayUltraman Cosmos (2001) — WriterUltraman Tiga: The Final Odyssey (2000) — ScreenplayThe Big O (1999) — WriterUltraman Gaia (1998) — WriterUltraman Dyna (1997) — WriterKamen Rider (1971) — Humagear · Writer · Series Composition