Tu Tontawan Tantivejakul, born in Bangkok, Thailand, is a model and actor under GMMTV. She graduated from Chulalongkorn University Demonstration School and later went on to study dentistry at Chulalongkorn University. In August 2025, she graduated with a dentistry degree, earning second class honours. Her elder brother is fellow actor Ton Tonhon Tantivejakul.

After breaking into the entertainment industry in 2020 with a role in the music video for Ink Waruntorn's "Disappointed" (เหนื่อยใจ), Tu made her acting debut in 2021 with a lead role in the series "F4 Thailand". In 2024, she made her film debut with a role in "How to Make Millions Before Grandma Dies".