Hayato Matsuo is a classically trained composer and arranger for Anime & Games. Famous for HELLSING, Magic Knight Rayearth and Jojo. Student of Koichi Sugiyama. He combines Rock, Funk and Jazz with Classical music and 20th Century Film music with a focus on a gothic sound and John Williams. In 1999 he arranged a symphonic album for Shenmue with the Kanagawa Philharmonic Orchestra. In 2000 he recorded Street Fighter Zero The Movie with the Kanagawa Philharmonic. In 2006 he arranged music for Hitoshi Sakimoto's FINAL FANTASY XII. In 2008 he worked on the OVA series HELLSING for many years with the Warsaw Philharmonic National Orchestra and Chorus. In 2016 he recorded a symphonic suite for TV Anime DRIFTERS with the Warsaw Philharmonic.

Married to sound designer Chiyoko Matsuo.