Question: What former model starred in director Shin Tae-ra's film My Girlfriend is an Agent?

Context articles: Black House (film)
Runway Cop
Namkoong Won
Red Scarf (film)
Pulgasari
Choi Eun-hee
My Girlfriend Is an Agent
A Flower in Hell
Kim Ha-neul
Shin Seong-il

Black House (Korean: 검은 집 ) is a 2007 South Korean horror film directed by Shin Tae-ra, that is based on the popular Japanese novel of the same title (called "Kuroi Ie") by Yusuke Kishi.
 A Japanese version of the film was made in 1999.
 The story centers on an insurance investigator that suspects a family murdered their son to receive his insurance policy.
Runway Cop (, literally "Detective Cha") is a 2012 South Korean action comedy film, starring Kang Ji-hwan and Sung Yu-ri and directed by Shin Tae-ra.
 It tells the story of an overzealous and overweight detective Cha Cheol-soo who goes undercover as a fashion model in order to solve a case.
 It reunites the two leads since the television series "Hong Gil-dong" (2008), and is the second film Kang has worked on with Shin since "My Girlfriend Is an Agent" (2009).
 It was released on May 30, 2012 by CJ Entertainment and ran for 110 minutes.
Namkoong Won (born August 1, 1934) is a South Korean actor.
 Namkoong was born Hong Gyeong-il in 1934.
 He was a popular actor of the 1960s along with Shin Seong-il, Shin Young-kyun and Choi Moo-ryong.
 Director Shin Sang-ok appraised his appearance that "The only Korean actor who has an international sense can compete Western actors."
 On the other hand, the flawless image limited his acting career.
Red Scarf (), also known as Red Muffler and Operation Air Raid-Red Muffler, is a 1964 South Korean aviation war film set during the Korean War.
 Headlined by stars Shin Young-kyun, Choi Eun-hee, Choi Moo-ryong some of the best known South Korean actors of their time, "Red Scarf" is among the most iconic of prolific director Shin Sang-ok's work, and was well received outside of South Korea.
 The film was made with the cooperation of the Republic of Korea Air Force (ROKAF) and is particularly well remembered for its aerial sequences; especially the final showdown between RoKAF F-86 Sabres and Korean People's Air Force MiG-15s.
 It inspired the 2012 action film "".
Pulgasari (Chosŏn'gŭl: 불가사리 ; RR: "Bulgasari " ) is a 1985 North Korean dark fantasy-action monster film directed by Shin Sang-ok and Chong Gon Jo.
 The film starred Chang Son Hui and Pak Sung Ho and featured special effects by Duk Ho Kim, supervised by Teruyoshi Nakano.
 The film was loosely based on the legend of the Bulgasari.
 Director Shin had been kidnapped in 1978 by North Korean intelligence on the orders of Kim Jong-il, son of the then-ruling Kim Il-sung.
Choi Eun-hee (born November 20, 1926) is a South Korean actress.
 She began her film career in 1947 in the film "A New Oath".
 For the next 20 years, she was one of the biggest stars in Korean film and led the Shin Film company along with her husband, the director Shin Sang-ok.
My Girlfriend Is An Agent (; lit.
 "7th Level Civil Servant") is a 2009 South Korean romantic action comedy film directed by Shin Tae-ra and starring Kim Ha-neul and Kang Ji-hwan.
 The film had 4,078,293 admissions nationwide and was the 4th most attended film of the year.
A Flower in Hell (지옥화 – "Jiokhwa") is a 1958 South Korean film directed by Shin Sang-ok.
 For her performance in this film, Shin's wife, Choi Eun-hee was given the Best Actress award at the 2nd Buil Film Awards.
 During the Korean War, director Shin Sang-ok had shared an apartment with a prostitute in order to live more comfortably rather than sharing a one-room evacuation apartment with several families, giving him insight in the subject of the film.
Kim Ha-neul (; born February 21, 1978) is a South Korean actress.
 After starting her career as a model, she rose to fame by starring in romantic-comedy films "My Tutor Friend" (2003) and "Too Beautiful to Lie" (2004) and the action-comedy film "My Girlfriend Is an Agent" (2009).
 In 2011, Kim won Best Actress at the 48th Grand Bell Awards and the 32nd Blue Dragon Film Awards for her performance in the serial killer thriller "Blind".
 Her television work includes romance series "Romance" (2002) and "A Gentleman's Dignity" (2012), "On Air" (2008) and the melodrama "On the Way to the Airport" (2016).
Shin Seong-il (born May 8, 1937) is a South Korean actor, film director, producer, and former politician.
 A legendary actor with 500 films in over 40 years, Shin debuted in director Shin Sang-ok's 1960 film "A Romantic Papa" and rose to fame through popular youth titles.
 A star in the 1960s and 1970s, however, his status as one of Korea's top actors extended well into the 1980s.