He is best known for the TV series The Slingshot (2009) and Bridal Mask (2012), Return (2018) and Rookie Historian Goo Hae-ryung (2019) as well as the films My Tutor Friend 2 (2007) and Secretly, Greatly (2013).

Park Ki-woong made his entertainment debut in the 2004 K2 music video "Giving You Love," then launched his acting career in 2005.

[2] His other notable roles include an invading Manchurian prince in period action film War of the Arrows (2011);[3] a sociopathic Japanese officer in colonized Korea in Bridal Mask (2012);[4] and an elite North Korean spy undercover as a rock musician in box office hit Secretly, Greatly (2013).

[11] He was next cast in the big-screen adaptation of popular webcomic Cheese in the Trap, playing the role of a musical genius.

[15] later in April Park joins the original wave drama You Raise Me Up with Yoon Shi-yoon and Ahn Hee-yeon.