Joint Security Area (Korean: 공동경비구역 JSA ) is a 2000 South Korean mystery thriller film starring Lee Young-ae, Lee Byung-hun and Song Kang-ho.
 It was directed by Park Chan-wook and is based on the novel "DMZ" by Park Sang-yeon.
 The film, which was shot on location in South Korea, concerns an investigation into the circumstances surrounding a fatal shooting incident within the DMZ, the heavily fortified border that separates North and South Korea.
Beautiful Days () is a 2001 South Korean television drama series starring Lee Byung-hun, Choi Ji-woo, Ryu Si-won and Lee Jung-hyun.
 The drama is the first entry in director Lee Jang-soo's "Heaven Trilogy" which includes "Stairways to Heaven" in 2003 and "Tree of Heaven" in 2006.
 It aired on SBS from March 14 to May 31, 2001 on Wednesdays and Thursdays at 21:55 for 24 episodes.
I Saw the Devil () is a 2010 South Korean psychological action thriller film directed by Kim Jee-woon, written by Park Hoon-jung, and starring Lee Byung-hun and Choi Min-sik.
 The film introduces the character of NIS agent Kim Soo-hyun (Lee Byung-hun), who embarks on a quest of revenge when his fiancée is brutally murdered by a psychopathic murderer, Jang Kyung-chul (Choi Min-sik).
 The line between good and evil begins to blur when the two play a dangerous game of cat and mouse.
 "I Saw the Devil" made its premiere in the United States at the 2011 Sundance Film Festival and had a limited U.S theatrical release.
Woo Min-ho (born 1971) is a South Korean film director and screenwriter.
 Woo debuted with the revenge thriller "Man of Vendetta" (2010), followed by the action comedy thriller "The Spies" (2012), both starred Kim Myung-min in the lead.
 His latest political thriller "Inside Men" (2015), based on Yoon Tae-ho's webtoon "The Insiders" which focused on the corrupt systems existing in Korea, the film focused on the intense competition between the characters themselves.
 Starring Lee Byung-hun, it was a hit with more than 5.7 million admissions as of December 12, 2015.
Lee Byung-hun (Korean: 이병헌 ; born July 12, 1970) is a South Korean actor, singer and model.
 He has received critical acclaim for his work in a wide range of genres, most notably "Joint Security Area" (2000); "A Bittersweet Life" (2005); "The Good, the Bad, the Weird" (2008); the television series "Iris" (2009); "I Saw the Devil" (2010); and "Masquerade" (2012).
 His critically acclaimed film "Inside Men" (2015) won him the Best Actor prize in three prestigious award ceremonies: 52nd Baeksang Art Awards, 37th Blue Dragon Awards and 53rd Grand Bell Awards—a feat that was unbroken since 2004.
 Lee has five films—"Joint Security Area", "The Good, the Bad, the Weird", "Masquerade", "Inside Men" and "Master"—on the list of highest-grossing films in South Korea.
Lee Byung-hun () is a Korean name consisting of the family name Lee and the given name Byung-hun, and may also refer to:
Asphalt Man () is a 1995 South Korean television series starring Lee Byung-hun, Choi Jin-sil, Jung Woo-sung, and Lee Young-ae.
 Based on the 1991 comic of the same title by manhwa artist Huh Young-man, it aired on SBS from May 17 to July 6, 1995 on Wednesdays and Thursdays at 21:55 for 16 episodes.
Inside Men () is a 2015 South Korean neo noir political crime action film written and directed by Woo Min-ho based on Yoon Tae-ho's webtoon "The Insiders" that dissects the corruption within Korean society.
 Starring Lee Byung-hun, Jo Seung-woo and Baek Yoon-sik, it began filming in July 2014 and was released in theaters on November 19, 2015.
Lee El (born Kim Ji-Hyun on August 26, 1982) is a South Korean actress.
 She is best known as Lee Byung-Hun's ill fated love interest in the movie "Inside Men", as well as supporting roles in the MBC's series "Monster" and the tvN's series "".
Single Rider () is 2017 South Korean mystery drama film starring Lee Byung-hun and Gong Hyo-jin.
 The film released on February 22, 2017.
 Co-produced and distributed by Warner Bros., the film is the directorial debut of Lee Joo-young.

Question: What ethnicity are both Inside Men and Lee Byung-hun?
Answer: South Korean