Park Ki-woong  Park Ki-woong (born February 13, 1985) is a South Korean actor. He is best known for the TV series "The Slingshot" (2009) and "Bridal Mask" (2012), as well as the films "My Tutor Friend 2" (2007) and "Secretly, Greatly" (2013). Park Ki-woong made his entertainment debut in the 2004 music video "Giving You Love," then launched his acting career in 2005. He rose to stardom for being the "mill dance (맷돌춤)" guy in a 2006 "PMP Phone" commercial. After a series of supporting roles on TV and film, Park starred in his first leading role in the 2007 romantic comedy "My Tutor Friend 2", but the film wasn't commercially successful. In 2008, he became the honorary ambassador of his hometown Andong. "The Slingshot" (2009) gave Park his first acting accolades. Critics and viewers praised his portrayal of an autistic genius who transforms into the best stock market analyst in the country. His other notable roles include an invading Manchurian prince in period action film "War of the Arrows" (2011); a sociopathic Japanese officer in colonized Korea in "Bridal Mask" (2012); and an elite North Korean spy undercover as a rock musician in box office hit "Secretly, Greatly" (2013). In July 2013, Park released the EP "You Are My Baby" as a special gift to his fans. He also wrote the lyrics of the title song "You Are My Baby" which featured Younha. Park then joined the newly launched reality/variety show "" (also known as "Heart Is Beating") in September 2013, which follows six celebrities as they undergo the process of becoming firefighters and EMTs. Park next appeared in the Kim Ki-duk-produced film "Made in China". But before its release, he enlisted for his mandatory military service on May 8, 2014. After undergoing basic training, Park was assigned as a policeman for 21 months. Following his discharge, Park made a comeback in MBC's revenge melodrama "Monster". He was next cast in the big-screen adaptation of popular webcomic "Cheese in the Trap", playing the role of a musical genius. In 2018, Park starred in mystery thriller "Return". In 2019, Park joined Jellyfish Entertainment, home of artists such as gugudan.