Vachirawich Watthanaphakdeephaisan, nicknamed Ryu, is a Thai singer, actor and table tennis player. He was a member of the boy group 9x9 (Nine by Nine). Nowadays, Ryu is an artist under Channel 3. (오뜨랑에서 실시간으로 번역된 한글 프로필도 확인할 수 있어요) 2026년 อุบัติรักเกาะสวรรค์에서 Chalarm 역을 맡았다. 2025년 죽어야 사랑받는에서 Petch 역을 맡았다. 2025년 เมื่อตะวันลับฟ้า ก็จะเป็นเวลาของดวงดาว에서 'Khim' Khimhan Bawornwisut 역을 맡았다.