Park was born on December 16, 1988 in Seoul as the oldest of three brothers. After graduation from An-Nam high school, he attended Seoul Institute of the Arts and enlisted for mandatory military service in 2008. Park made his entertainment debut in 2011 by appearing in the music video of Bang Yong-Guk's single "I Remember." He has then appeared in television dramas Dream High 2 (2012), Pots of Gold (2013), and Witch's Romance (2014). From October 2013 to April 2015, he became the host of Music Bank. His breakout role came in 2015 as the male lead of the television series She was Pretty. He had a role in Bong Joon-ho's blockbuster comedy-thriller Parásitos (2019).