Character's name: "Seong Gi-hun / 'No. 456'"
Birthday: 12/15/1972
Birthplace: Icheon, Gyeonggi-do, South Korea
Biography:
Lee Jung-jae (이정재) is a South Korean actor. Born on March 15, 1973, he began modeling in 1993 before getting his first acting roles the film The Young Man (1994) and the TV series Feelings (1994) and Sandglass (1995), which is one of the highest rated Korean dramas of all time with a peak rating of 64.5%. But his real breakthrough was with leading roles in award-winning films The Affair (1998) and City of the Rising Sun (1999). The latter of which earned him the Best Actor award at the prestigious Blue Dragon film awards. This was followed by a series of critical hits like Il Mare (2000) and commercial successes including Last Present (2001), The Last Witness (2001), Oh Brothers (2003), and the blockbuster Typhoon (2005). After a brief career slump of flop movies and tv shows, he returned with the critical and commercial hit The Housemaid (2010), which is a remake of the 1960 film of the same name. Since then, he went on to cement himself as one of Korea's biggest movie stars with a string of some of the biggest blockbusters in Korean history including The Thieves (2012), New World (2013), The Face Reader (2013), Assassination (2015), Operation Chromite (2016), and the Along with the Gods films (2017-2018). Most of these films did north of 12 million admissions at the domestic box-office, with The Thieves (2012) and Along with the Gods (2017) becoming the #2 biggest Korean hit in history at their respective time of release. He received a number of awards and nominations for these works including a Popularity Award at the prestigious Grand Bell awards. His most recent blockbuster is Deliver Us From Evil (2020) in which he reunited with his New World (2013) co-star Hwang Jung-min. It crossed 4 million admissions domestically and was the second biggest hit of the year in Korea.

Character's name: "Front Man"
Birthday: 07/12/1970
Birthplace: Seongnam, Gyeonggi, South Korea
Biography:
Lee Byung-hun (이병헌) is a South Korean actor, singer and model. He was born on July 12, 1970. He achieved wider fame after starring in the television dramas Iris (2009), All In (2003) and Beautiful Days (2001). He is also known for his starring roles in Joint Security Area (2000), A Bittersweet Life (2005), The Good, the Bad, the Weird (2008) and I Saw the Devil (2010). He has received multiple awards and nominations throughout his career.

Character's name: "Jun-ho"
Birthday: 08/05/1991
Birthplace: Wando, South Jeolla, South Korea
Biography:
Wi Ha-jun (위하준) is a South Korean actor and model born in Soan-myeon, Wando County. He is managed by MSTeam Entertainment. He is a former student at Sungkyul University in the Faculty of Theater and Film, Theater Major.

Character's name: "Yong-sik"
Birthday: 06/01/1979
Birthplace: Seoul, South Korea
Biography:
Yang Dong-geun (양동근) is a South Korean film, television, and theater actor.  He also performs hip-hop music under the name "YDG".

Character's name: "Dae-ho"
Birthday: 02/21/1990
Birthplace: Busan, South Korea
Biography:
Kang Ha-neul (강하늘) is a South Korean film and musical actor.

Character's name: "Jun-hee"
Birthday: 10/22/2001
Birthplace: Busan, South Korea
Biography:
Jo Yuri (also known as Jo Yu-ri, Yuri) is a South Korean actress and singer, born on October 22nd, 2001 in Busan, South Korea. She is known as a former member of the South Korean-Japanese girl group IZ*ONE. She is currently under the label WakeOne Entertainment. In July 2017, Jo Yuri participated in Mnet's reality television show Idol School, where the nine final participants would debut with newly formed girl group Fromis 9. She finished in 15th place. On May 2018, Jo Yuri participated in Mnet's reality television show Produce 48 (2018), where she finished in 3rd place. As one of twelve successful participants, she went on to be a part of the newly formed girl group IZ*ONE. On October 29th, 2018, Jo debuted as a member of IZ*ONE with the release of "Color*Iz." On February 17th, 2020, IZ*ONE released their first Korean-language studio album "Bloom*Iz," on which Jo Yuri wrote and co-composed the song "Someday", a sub-unit song sung by her, Kim Chae-won, and Choi Yena. The group disbanded on April 29th, 2021, upon the expiration of their contract. On September 2021, WakeOne announced that Jo Yuri will be releasing her first single album titled "Glassy" on October 7th, 2021, with title track of the same name. Following her debut as a soloist, Jo Yuri was nominated for Rookie of the Year at the 36th Golden Disc Awards, Best New Female Artist at the 2021 Mnet Asian Music Awards, and Rookie of the Year at the 31st Seoul Music Awards. Jo Yuri was cast in her first acting role, the Playlist Studio web series Mimicus (2022). She also made a special appearance in episodes 7 and 10 of the second season of Work Later, Drink Now (2021) portraying Si Eun, a juvenile delinquent. Jo Yuri's performance was well received by critics such as Choi Hyejin writing for MT Star News, who praised Jo Yuri's natural acting and described the performance as "short, but leaving a strong impression". On June 2023, it was announced that Jo Yuri had been cast in the second season of the Netflix television series, Squid Game (2024), playing Kim Jun-hee (No. 222).

Character's name: "Gyeong-seok"
Birthday: 09/16/1981
Birthplace: Cheongju, North Chungcheong, South Korea
Biography:
Lee Jin-wook (This is a Korean name; the family name is Lee, 이진욱, born September 16, 1981) is a South Korean actor. He is best known for his leading role in the romance series Glass Castle, the time-traveling series Nine (2013), romance series The Time We Were Not in Love and a supporting role in the comedy film Miss Granny. From Wikipedia, the free encyclopedia

Character's name: "Myung-gi"
Birthday: 12/01/1988
Birthplace: Busan, South Korea
Biography:
Yim Si-wan (임시완), born Yim Woong-jae (임웅재), is an actor and member of the boyband ZE:A.

Character's name: "Geum-ja"
Birthday: 02/28/1963
Birthplace: South Korea

Character's name: "Jung-bae"
Birthday: 03/06/1973
Birthplace: Nam, Incheon, Gyeonggi, South Korea [now Namdong, Incheon, South Korea]

Character's name: "Hyun-ju"
Birthday: 02/18/1985
Birthplace: Gwacheon, Gyeonggi, South Korea

Character's name: "No-eul"
Birthday: 07/27/1993
Birthplace: Busan, South Korea
Biography:
Park Kyu young is a South Korean actress and model. She is best known for her roles in dramas such as Solomon's Perjury, The Third Charm and Rain or Shine. She appeared in Jo Kwon's 'Crosswalk' MV and Day6 'I Like You' MV. In August 2019 she left JYP Entertainment and joined Saram Entertainment.

Character's name: "Seon-nyeo"
Birthday: 09/18/1970

Character's name: "Min-su"
Birthday: 03/02/1994
Birthplace: Incheon, South Korea
Biography:
Lee Da-wit (이다윗) is a South Korean actor best known for his supporting roles in a variety of hit Korean films such as The Frontline, War of the Arrows, and Kundo.

Character's name: "Thanos"
Birthday: 11/04/1987
Birthplace: Seoul, South Korea
Biography:
Choi Seung-Hyun is a South Korean recording artist, songwriter, and actor. Best known as a member of the Korean boy band BIGBANG, he has branched out to act in various dramas and films since 2007.