Tontawan Tantivejakul, nicknamed Tu, is a Thai model and actor under GMMTV. She graduated from Chulalongkorn University's secondary school and is currently studying dentistry there. Her elder brother is Tonhon Tantivejakul (Ton), an artist under Nadao Bangkok. Her mother is a professor at the university teaching Communication Arts, while her father works in advertising.

She starred the Official MV for song "Tired" (เหนื่อยใจ) by Waruntorn Paonil (Ink) in 2020 alongside Putthipong Assaratanakul (Billkin). She's set to debut as the female lead in GMMTV series 'F4 Thailand', a Thai adaptation of the popular Japanese manga 'Boys Over Flowers' (Hana Yori Dango). Tu is a big fan of Korean bands 'EXO', 'NCT' and 'Red Velvet'.