First Kanaphan Puitrakul is an actor born in Bangkok, Thailand. He completed his secondary education in Suankularb Wittayalai School. In 2021, he graduated from the College of Social Communication Innovation at Srinakharinwirot University with a bachelor's degree in Cyber Business Management.

He started his acting career after auditioning from a pool of 100 teenagers and got the main role for The Assassin: ฆาตกร, a movie produced for Children's Day in 2016. In 2017, he participated in the "Cool Man Good Man" competition where he placed fourth and became part of KAZZ Magazine's photoshoot in November 2017.

He was then tapped by KA Cosmetics, together with Poompat Iam-samang (Up), for a yaoi television advertisement which later on became viral. Since then First is an artist under GMMTV where has played in notable roles in multiple dramas including "Wolf", "Blacklist", "The Shipper,” “Not Me,” and “The Eclipse.”