Coin Locker Girl (; lit.
 Chinatown) is a 2015 South Korean film written and directed by Han Jun-hee, starring Kim Hye-soo, Kim Go-eun, Uhm Tae-goo with Park Bo-gum and Go Kyung-pyo.
 It was selected to screen in the International Critics' Week section of the 2015 Cannes Film Festival.
Wonderful Mama () is a 2013 South Korean television series starring Bae Jong-ok with Jeong Yu-mi, Kim Ji-seok and Park Bo-gum.
 It premiered on April 13, 2013, and ended on September 22, 2013, airing on SBS every Saturday and Sunday at 20:40 for 48 episodes.
Park Si-yeon (born Park Mi-seon on March 29, 1979) is a South Korean actress.
 She joined the Miss Korea pageant in 2000, and using that as a springboard to an acting career, she made her acting debut in China in 2004, appearing in minor roles in several CCTV dramas.
 In 2005 Park was cast in her first starring role in the Korean drama "My Girl", though at the time she was more known for dating actor-singer Eric Mun.
 As she built her filmography in the following years, Park overcame early criticism of her acting skills and eventually gained respect as an actress in TV series such as "La Dolce Vita", "Coffee House" and "The Innocent Man", as well as the films "The Fox Family", "A Love", and "The Scent".
Love in the Moonlight () is a South Korean television series starring Park Bo-gum and Kim Yoo-jung with Jinyoung, Chae Soo-bin and Kwak Dong-yeon.
 It is a coming-of-age story and youth romance set during 19th-century Joseon Dynasty based on the novel "" which was first serialized on Naver in 2013 and consequently published as a five-part series of books in 2015.
 It aired every Monday and Tuesday from August 22, 2016 until October 18, 2016 on KBS2 at 22:00 (KST) for 18 episodes.
Kim Yoo-jung (; born September 22, 1999) is a South Korean actress.
 After her acting debut in 2003, she became one of the best known child actresses in Korea and since then, has transitioned into teen roles by starring in television series "Moon Embracing the Sun" (2012), "May Queen" (2012) and "Angry Mom" (2015).
 She hosted music show "Inkigayo" from November 2014 to April 2016 and took on her first adult leading role in KBS2's historical drama "Love in the Moonlight" (2016).
Hello Monster (; lit.
 I Remember You) is a South Korean television series starring Seo In-guk, Jang Na-ra, Choi Won-young and Park Bo-gum.
 It aired on KBS2 from June 22 to August 11, 2015 every Mondays and Tuesdays at 21:55 for 16 episodes.
Naeil's Cantabile () is a South Korean television series adapted from the Japanese manga "Nodame Cantabile" by Tomoko Ninomiya.
 Starring Joo Won and Shim Eun-kyung with Park Bo-gum, Go Kyung-pyo and Baek Yoon-sik, it aired on KBS2 from October 13 to December 2, 2014 for 16 episodes.
Kim Hee-jung (born April 16, 1992) is a South Korean actress.
 She made her acting debut in 2000 as a child actress, playing the titular character in "Kkokji" (also known as "Tough Guy's Love").
 As Kim reached her early twenties, one of her notable roles was Gwanghae's queen consort in the 2014 period drama "The King's Face".
 On May 2016, Kim signed with YG Entertainment.
 She is also a member of the South Korean female dance crew Purplow, known by the stage name Bibi.
Park Bo-gum (; born June 16, 1993) is a South Korean actor.
 He gained recognition for his diverse range of roles in film and television, notably, a psychopathic lawyer in "Hello Monster" (2015), a genius Go player in "Reply 1988" (2015–2016), and a Joseon Crown Prince in "Love in the Moonlight" (2016).
Reply 1988 () is a South Korean television series starring Lee Hye-ri, Park Bo-gum, Go Kyung-pyo, Ryu Jun-yeol and Lee Dong-hwi.
 Set in the year 1988, it revolves around five friends and their families living in the same neighborhood of Ssangmun-dong, Dobong District, Northern Seoul.
 It aired every Friday and Saturday from November 6, 2015, to January 16, 2016, on tvN at 7:50 (KST) for 20 episodes.

Question: South Korean actress, starring in the South Korean television series Love in the Moonlight with Park Bo-gum, made her acting debut in what year?
Answer: 2003