Question: Which South Korean actor starred in a 2010 drama film written and directed by Lee Chang-dong?

Context articles: Green Fish
Burning (film)
Lee David
Peppermint Candy
Ahn Nae-sang
Lee Chang-dong
Oasis (2002 film)
Poetry (film)
Han Sun-hwa
Secret Sunshine

Green Fish () is a 1997 South Korean film.
 It was the first feature-length film directed by Lee Chang-dong, who also co-wrote the screenplay.
 Lee had previously been known as a novelist and high school teacher.
 The film stars Han Suk-kyu in one of his first major film roles.
 It was the eighth highest-attended South Korean film of 1997.
Burning is an upcoming 2018 South Korean mystery drama film directed by Lee Chang-dong.
Lee David (born March 3, 1994) is a South Korean actor.
 He is best known for his supporting roles in "Poetry" and "The Front Line", and his starring roles in "Romance Joe" and "Pluto".
Peppermint Candy () is a 1999 film, the second from South Korean director Lee Chang-dong.
 The movie starts with the suicide of the protagonist and uses reverse chronology to depict some of the key events of the past 20 years of his life that led to his death.
 It was the ninth highest grossing domestic film of 2000 with 311,000 admissions in Seoul.
Ahn Nae-sang (born December 25, 1964) is a South Korean actor.
 He began his career on the stage, and in 1994 made his film debut in the Bong Joon-ho short film "Baeksekin" ("White Man" or "White-collar worker"), followed by Jang Sun-woo's "Bad Movie" in 1997.
 He has since starred in numerous films, with supporting roles in Lee Chang-dong's "Oasis" and "Poetry", and a leading role in "Hoichori" ("Cane").
 He also appears in television series, notably "Conspiracy in the Court", "First Wives' Club", "Three Brothers", and "".
Lee Chang-dong (; born July 4, 1954) is a South Korean film director, screenwriter and novelist.
 He is best known for his films "Peppermint Candy", "Oasis", "Secret Sunshine", and "Poetry".
 Lee had won Special Director's Award at the 2002 Venice Film Festival and the Best Screenplay award at the 2010 Cannes Film Festival; he has also been nominated for the Golden Lion and the Palme d'Or.
 Lee served as South Korea's Minister of Culture and Tourism from 2003 to 2004.
Oasis () is a 2002 South Korean film directed by Lee Chang-dong.
 This is Lee's third feature film, and the last one he directed before his stint as South Korea's Minister of Culture.
 The film's plot tells about the difficult romance between a mildly mentally disabled man who has just been released from jail after a two and a half year sentence for involuntary manslaughter and a woman with severe cerebral palsy.
 Starring in these roles are the couple from Lee Chang-dong's previous film "Peppermint Candy"; Sol Kyung-gu and Moon So-ri.
 The movie also shows how the two main characters are treated by their families and perceived by the people around them.
Poetry () is a 2010 South Korean drama film written and directed by Lee Chang-dong.
 It tells the story of a suburban woman in her 60s who begins to develop an interest in poetry while struggling with Alzheimer's disease and her irresponsible grandson.
 Yoon Jeong-hee stars in the leading role, which was her first role in a film since 1994.
 The film was selected for the main competition at the 2010 Cannes Film Festival, where it won the Best Screenplay Award.
 Other accolades include the Grand Bell Awards for Best Picture and Best Actress, the Blue Dragon Film Awards for Best Actress, and the Los Angeles Film Critics Association Award for Best Actress.
Han Sun-hwa (born October 6, 1990), is a South Korean singer and actress.
 She is a former member of the South Korean girl group Secret.
 She made her television debut in 2004 while participating in SBS's "Superstar Survival" as a finalist, and in 2009, she was a regular cast on a variety show called "Invincible Youth".
 Aside from music, she also ventured into acting and made her debut in the 2010 drama, "More Charming By The Day".
 She also acted in several dramas with supporting roles in "Ad Genius Lee Tae-baek", "God's Gift - 14 Days", and "Marriage, Not Dating".
 In 2014 she finally starred as a lead actress on MBC's weekend drama "Rosy Lovers" as Baek Jang Mi co-starring with actor Lee Jang Woo.
 CNN International Seoul listed Sunhwa as one of the nine rising "It" stars in Korean entertainment citing her as a "multi-tasking" artist.
 Her portrayal of Kang Se-Ah in the 2014 TVN drama, "Marriage, Not Dating" earned her a nomination for "Best Youth Actress" at the 16th Seoul International Youth Film Festival.
 In 2014, her portrayal of Jang-Mi from "Rosy Lovers" and Jenny from "God's Gift 14 Day"s won her two best new actress awards from MBC and SBS Drama Awards.
 It was confirmed on September 26, 2016 that Sunhwa had not renewed her contract with TS Entertainment and will officially part ways in October.
 On October 14, 2016 Sunhwa joined Huayi Brothers as an actress.
Secret Sunshine () is a 2007 South Korean drama film directed by acclaimed South Korean director, novelist, and former Minister of Culture Lee Chang-dong.
 The screenplay based on the short fiction "The Story of a Bug" by Lee Cheong-jun that focuses on a woman as she wrestles with the questions of grief, madness, and faith.
 The Korean title Miryang (or Milyang) is named after the city that served as the film's setting and filming location, of which "Secret Sunshine" is the literal translation.
 For her performance in the film, Jeon Do-yeon won the Prix d'interprétation féminine du Festival de Cannes (Best Actress) at the 2007 Cannes Film Festival.
 The film also won the award for Best Film at the Asian Film Awards and at the Asia Pacific Screen Awards.
 The film sold 1,710,364 tickets nationwide in South Korea alone.