Frank Thanatsaran Samthonglai is a Thai actor and model. In 2017, Frank got his start as an actor under GMMTV. He didn't leave the company until 2021 when he was required to serve in the military. He gained popularity with his role in the 2018 series "Cause You're My Boy."

He owns a clothing brand called Fishing Bears and a accessories brand called The Rocket Jewelry.