Natachai Boonprasert (ณัฎฐ์ฐชัย บุญประเศริฐ; born October 1, 2000), nicknamed Dunk (ดัง), is a Thai actor and singer under GMMTV. In 2023, he graduated from the Faculty of Engineering at King Mongkut's Institute of Technology Ladkrabang, majoring in Computer Innovation Engineering. He made his acting debut in 2021 with a guest role in the series "Bad Buddy" (แค่เพื่อนครับเพื่อน).