Daisuke Ishiwatari (石渡 太輔, Ishiwatari Daisuke, born 14 August 1973 in Johannesburg, South Africa) is a South African-Japanese video game developer, illustrator, musician, composer and voice actor. He is best known for creating the 2D fighting game series Guilty Gear. He designed the characters and storyline, and wrote the music. He also provides the in-game voice for the characters Sol Badguy and Order-Sol, as well as Freed Velez in Battle Fantasia.
Ishiwatari worked with Arc System Works on the first Guilty Gear as soon as he left school. Recently, Daisuke, along with Yoshihiro Kusano, also wrote the music for BlazBlue, as well as painting the character selection portraits for the sequel, BlazBlue: Continuum Shift. As well as this, he has also composed for Hard Corps: Uprising.
Daisuke Ishiwatari is also noted as being a composer in the metal and rock genres. His compositions, found in his signature series, Guilty Gear, feature intricate guitar work, as do his compositions found in BlazBlue. The albums Guilty Gear XX in LA and Guilty Gear XX in NY include vocals for selected songs, as do three albums in Japanese by the band Lapis Lazuli.