Hisashi Hirai (平井久司, Hirai Hisashi, born on May 27) is a Japanese animator, character designer, and manga artist.
He is noted for his work with Sunrise, having worked on Infinite Ryvius, s-CRY-ed, Gundam SEED, Gundam SEED Destiny and Fafner of the Azure.
He was also the lead animator for Linebarrels of Iron.
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