Notable for his childhood and teenage roles in South Korean television series such as Warrior Baek Dong-soo, Time Between Dog and Wolf, and May Queen, he is also well known for his KBS and MBC Drama Award-winning performances in the respective series I'm Sorry, I Love You and East of Eden.
He is featured in singer Lee Seung-gi's 2012 "Return" music video.
In 2013, he appeared alongside Byung-hun Lee in several episodes of the television series Iris.
Early in his career, he acted in the KBS2 network programs Hard Love and Mittens.
Known alternately as Park Geon-tae and Gun-Tae Park, he was raised in South Korea.