Question: Who is known for his role in a 2016 South Korean horror film directed by Na Hong-jin?

Context paragraphs:
Thirst (2009 film): Thirst (Korean: 박쥐; Bakjwi ; literally: "Bat") is a 2009 South Korean horror film written, produced and directed by Park Chan-wook.  It is loosely based on the novel "Thérèse Raquin" by Émile Zola.  The film tells the story of a Catholic priest—who is in love with his friend’s wife—turning into a vampire through a failed medical experiment.  Park has stated, "This film was originally called 'The Bat' to convey a sense of horror.  After all, it is about vampires.  But it is also more than that.  It is about passion and a love triangle.  I feel that it is unique because it is not just a thriller, and not merely a horror film, but an illicit love story as well."  The film won the Jury Prize at the 2009 Cannes Film Festival.  It is the first mainstream Korean film to feature full-frontal male nudity.

The Chaser (film): The Chaser () is a 2008 South Korean action thriller film starring Kim Yoon-seok and Ha Jung-woo.  It was directed by Na Hong-jin in his directorial debut.  Inspired by real-life Korean serial killer Yoo Young-chul, the film was shot on location around Mangwon-dong in the Mapo District, Seoul.

Missing You (2016 film): Missing You (Korean: 널 기다리며) is a 2016 South Korean revenge thriller film written and directed by Mo Hong-jin.  It was released in South Korea on March 10, 2016.

Kwak Do-won: Kwak Do-won (born Kwak Byung-kyu on May 17, 1974) is a South Korean actor.  He is known for his roles in the films "The Yellow Sea" (2010), "" (2012), "The Attorney" (2013) and "The Wailing" (2016).

Ha Jung-woo: Ha Jung-woo (born Kim Sung-hoon on March 11, 1978) is a South Korean actor, film director, screenwriter and film producer.  His breakthrough to stardom came with the role in Na Hong-jin's serial killer film "The Chaser" (2008).  One of the leading actors of his generation in Korean cinema, Ha Jung-woo showcased his versatility across movies from many genres: road movie "My Dear Enemy" (2008), sports film "Take Off" (2009), crime drama "The Yellow Sea" (2010), gangster saga "" (2012), romantic comedy "Love Fiction" (2012), spy thriller "The Berlin File" (2013), and action thriller "The Terror Live" (2013).  He made his directorial debut through the comedy film "Fasten Your Seatbelt" (2013), followed by "Chronicle of a Blood Merchant" (2015).

Death Bell: Death Bell () is a 2008 South Korean film.  The only Korean horror film released over the summer of 2008, it is the first feature by former music video director Chang (real name Yoon Hong-seung), who also co-wrote the screenplay.  "Death Bell" stars Lee Beom-soo in his first horror film role, and K-pop singer Nam Gyu-ri in her acting debut.  Set in a Korean high school, the film's native title refers to "gosa", the important midterm exams that all students are required to sit.

Dead Friend: Dead Friend (; lit.  "The Ghost") is a 2004 South Korean horror film.  It is one of a number of South Korean horror films set in high school; the trend began with 1998's "Whispering Corridors".

Whispering Corridors (film series): Whispering Corridors (; also known as Ghost School and Ghost School Horror) is a South Korean horror film series.  The series uses an all-girls high school as the backdrop for each of its films and doesn't share a continuing plot.  Every "Whispering Corridors" film features a different plot, characters and settings.  The series is notable for helping generate the explosion of the New Korean Wave cinematic movement, and dealing with taboo topics such as authoritarianism in the harsh South Korean education system, gay relationships and teen suicide, following the liberalization of censorship.

Na Hong-jin: Na Hong-jin (born 1974) is a South Korean film director and screenwriter.  For his feature film debut "The Chaser" (2008), Na won Best Director at the Grand Bell Awards and Korean Film Awards.

The Wailing (film): The Wailing () is a 2016 South Korean horror film directed by Na Hong-jin about a policeman who investigates a series of mysterious killings and illnesses.  It was a commercial success.

Supporting paragraphs: Kwak Do-won The Wailing (film)
Answer: Kwak Do-won