Book Kasidet Plookphol is a Thai actor and singer under GMMTV. In 2019, he graduated with a bachelor's degree from the Faculty of Engineering at King Mongkut's University of Technology Thonburi, majoring in Chemical Engineering. Book is a former member of the boy group CUTE CHEF during university. The group was active in 2018 before they quietly disbanded. He made his acting debut in 2020 with a supporting role in the series "Friend Forever" (บทเพื่อน บทเพลง). Aside his acting and singing career, Book owns the clothing brand 'plutoyesterday'.
