Since first beginning his work on the Ultraman franchise with the 1996 series Ultraman Tiga, Hasegawa has gone on to write more material for the franchise than any other writer.
Itsuko Hasegawa | Keiichi Morisato | Hasegawa Corporation | ''Pine Trees'' by Hasegawa TÅhaku | Luke Hasegawa | Kunihiro Hasegawa | Keiichi Tsuchiya | Keiichi Nanba |